256986900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:263

約数の個数: 216

約数和(自身を含む): 850723328

約数和(自身を除く): 593736428

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 31, 36, 45, 50, 60, 61, 62, 75, 90, 93, 100, 122, 124, 150, 151, 155, 180, 183, 186, 225, 244, 279, 300, 302, 305, 310, 366, 372, 450, 453, 465, 549, 558, 604, 610, 620, 732, 755, 775, 900, 906, 915, 930, 1098, 1116, 1220, 1359, 1395, 1510, 1525, 1550, 1812, 1830, 1860, 1891, 2196, 2265, 2325, 2718, 2745, 2790, 3020, 3050, 3100, 3660, 3775, 3782, 4530, 4575, 4650, 4681, 5436, 5490, 5580, 5673, 6100, 6795, 6975, 7550, 7564, 9060, 9150, 9211, 9300, 9362, 9455, 10980, 11325, 11346, 13590, 13725, 13950, 14043, 15100, 17019, 18300, 18422, 18724, 18910, 22650, 22692, 23405, 27180, 27450, 27633, 27900, 28086, 28365, 33975, 34038, 36844, 37820, 42129, 45300, 46055, 46810, 47275, 54900, 55266, 56172, 56730, 67950, 68076, 70215, 82899, 84258, 85095, 92110, 93620, 94550, 110532, 113460, 117025, 135900, 138165, 140430, 141825, 165798, 168516, 170190, 184220, 189100, 210645, 230275, 234050, 276330, 280860, 283650, 285541, 331596, 340380, 351075, 414495, 421290, 425475, 460550, 468100, 552660, 567300, 571082, 690825, 702150, 828990, 842580, 850950, 856623, 921100, 1053225, 1142164, 1381650, 1404300, 1427705, 1657980, 1701900, 1713246, 2072475, 2106450, 2569869, 2763300, 2855410, 3426492, 4144950, 4212900, 4283115, 5139738, 5710820, 7138525, 8289900, 8566230, 10279476, 12849345, 14277050, 17132460, 21415575, 25698690, 28554100, 42831150, 51397380, 64246725, 85662300, 128493450, 256986900]

約数ペア:

[(1, 256986900), (2, 128493450), (3, 85662300), (4, 64246725), (5, 51397380), (6, 42831150), (9, 28554100), (10, 25698690), (12, 21415575), (15, 17132460), (18, 14277050), (20, 12849345), (25, 10279476), (30, 8566230), (31, 8289900), (36, 7138525), (45, 5710820), (50, 5139738), (60, 4283115), (61, 4212900), (62, 4144950), (75, 3426492), (90, 2855410), (93, 2763300), (100, 2569869), (122, 2106450), (124, 2072475), (150, 1713246), (151, 1701900), (155, 1657980), (180, 1427705), (183, 1404300), (186, 1381650), (225, 1142164), (244, 1053225), (279, 921100), (300, 856623), (302, 850950), (305, 842580), (310, 828990), (366, 702150), (372, 690825), (450, 571082), (453, 567300), (465, 552660), (549, 468100), (558, 460550), (604, 425475), (610, 421290), (620, 414495), (732, 351075), (755, 340380), (775, 331596), (900, 285541), (906, 283650), (915, 280860), (930, 276330), (1098, 234050), (1116, 230275), (1220, 210645), (1359, 189100), (1395, 184220), (1510, 170190), (1525, 168516), (1550, 165798), (1812, 141825), (1830, 140430), (1860, 138165), (1891, 135900), (2196, 117025), (2265, 113460), (2325, 110532), (2718, 94550), (2745, 93620), (2790, 92110), (3020, 85095), (3050, 84258), (3100, 82899), (3660, 70215), (3775, 68076), (3782, 67950), (4530, 56730), (4575, 56172), (4650, 55266), (4681, 54900), (5436, 47275), (5490, 46810), (5580, 46055), (5673, 45300), (6100, 42129), (6795, 37820), (6975, 36844), (7550, 34038), (7564, 33975), (9060, 28365), (9150, 28086), (9211, 27900), (9300, 27633), (9362, 27450), (9455, 27180), (10980, 23405), (11325, 22692), (11346, 22650), (13590, 18910), (13725, 18724), (13950, 18422), (14043, 18300), (15100, 17019)]