400225500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:226

約数の個数: 288

約数和(自身を含む): 1380986880

約数和(自身を除く): 980761380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 25, 30, 31, 36, 38, 45, 50, 57, 60, 62, 75, 76, 90, 93, 95, 100, 114, 124, 125, 150, 151, 155, 171, 180, 186, 190, 225, 228, 250, 279, 285, 300, 302, 310, 342, 372, 375, 380, 450, 453, 465, 475, 500, 558, 570, 589, 604, 620, 684, 750, 755, 775, 855, 900, 906, 930, 950, 1116, 1125, 1140, 1178, 1359, 1395, 1425, 1500, 1510, 1550, 1710, 1767, 1812, 1860, 1900, 2250, 2265, 2325, 2356, 2375, 2718, 2790, 2850, 2869, 2945, 3020, 3100, 3420, 3534, 3775, 3875, 4275, 4500, 4530, 4650, 4681, 4750, 5301, 5436, 5580, 5700, 5738, 5890, 6795, 6975, 7068, 7125, 7550, 7750, 8550, 8607, 8835, 9060, 9300, 9362, 9500, 10602, 11325, 11476, 11625, 11780, 13590, 13950, 14043, 14250, 14345, 14725, 15100, 15500, 17100, 17214, 17670, 18724, 18875, 21204, 21375, 22650, 23250, 23405, 25821, 26505, 27180, 27900, 28086, 28500, 28690, 29450, 33975, 34428, 34875, 35340, 37750, 42129, 42750, 43035, 44175, 45300, 46500, 46810, 51642, 53010, 56172, 56625, 57380, 58900, 67950, 69750, 70215, 71725, 73625, 75500, 84258, 85500, 86070, 88350, 88939, 93620, 103284, 106020, 113250, 117025, 129105, 132525, 135900, 139500, 140430, 143450, 147250, 168516, 169875, 172140, 176700, 177878, 210645, 215175, 220875, 226500, 234050, 258210, 265050, 266817, 280860, 286900, 294500, 339750, 351075, 355756, 358625, 421290, 430350, 441750, 444695, 468100, 516420, 530100, 533634, 585125, 645525, 662625, 679500, 702150, 717250, 800451, 842580, 860700, 883500, 889390, 1053225, 1067268, 1075875, 1170250, 1291050, 1325250, 1334085, 1404300, 1434500, 1600902, 1755375, 1778780, 2106450, 2151750, 2223475, 2340500, 2582100, 2650500, 2668170, 3201804, 3227625, 3510750, 4002255, 4212900, 4303500, 4446950, 5266125, 5336340, 6455250, 6670425, 7021500, 8004510, 8893900, 10532250, 11117375, 12910500, 13340850, 16009020, 20011275, 21064500, 22234750, 26681700, 33352125, 40022550, 44469500, 66704250, 80045100, 100056375, 133408500, 200112750, 400225500]

約数ペア:

[(1, 400225500), (2, 200112750), (3, 133408500), (4, 100056375), (5, 80045100), (6, 66704250), (9, 44469500), (10, 40022550), (12, 33352125), (15, 26681700), (18, 22234750), (19, 21064500), (20, 20011275), (25, 16009020), (30, 13340850), (31, 12910500), (36, 11117375), (38, 10532250), (45, 8893900), (50, 8004510), (57, 7021500), (60, 6670425), (62, 6455250), (75, 5336340), (76, 5266125), (90, 4446950), (93, 4303500), (95, 4212900), (100, 4002255), (114, 3510750), (124, 3227625), (125, 3201804), (150, 2668170), (151, 2650500), (155, 2582100), (171, 2340500), (180, 2223475), (186, 2151750), (190, 2106450), (225, 1778780), (228, 1755375), (250, 1600902), (279, 1434500), (285, 1404300), (300, 1334085), (302, 1325250), (310, 1291050), (342, 1170250), (372, 1075875), (375, 1067268), (380, 1053225), (450, 889390), (453, 883500), (465, 860700), (475, 842580), (500, 800451), (558, 717250), (570, 702150), (589, 679500), (604, 662625), (620, 645525), (684, 585125), (750, 533634), (755, 530100), (775, 516420), (855, 468100), (900, 444695), (906, 441750), (930, 430350), (950, 421290), (1116, 358625), (1125, 355756), (1140, 351075), (1178, 339750), (1359, 294500), (1395, 286900), (1425, 280860), (1500, 266817), (1510, 265050), (1550, 258210), (1710, 234050), (1767, 226500), (1812, 220875), (1860, 215175), (1900, 210645), (2250, 177878), (2265, 176700), (2325, 172140), (2356, 169875), (2375, 168516), (2718, 147250), (2790, 143450), (2850, 140430), (2869, 139500), (2945, 135900), (3020, 132525), (3100, 129105), (3420, 117025), (3534, 113250), (3775, 106020), (3875, 103284), (4275, 93620), (4500, 88939), (4530, 88350), (4650, 86070), (4681, 85500), (4750, 84258), (5301, 75500), (5436, 73625), (5580, 71725), (5700, 70215), (5738, 69750), (5890, 67950), (6795, 58900), (6975, 57380), (7068, 56625), (7125, 56172), (7550, 53010), (7750, 51642), (8550, 46810), (8607, 46500), (8835, 45300), (9060, 44175), (9300, 43035), (9362, 42750), (9500, 42129), (10602, 37750), (11325, 35340), (11476, 34875), (11625, 34428), (11780, 33975), (13590, 29450), (13950, 28690), (14043, 28500), (14250, 28086), (14345, 27900), (14725, 27180), (15100, 26505), (15500, 25821), (17100, 23405), (17214, 23250), (17670, 22650), (18724, 21375), (18875, 21204)]