18860400

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1$

素因数の和:81

約数の個数: 270

約数和(自身を含む): 73159008

約数和(自身を除く): 54298608

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 25, 26, 30, 31, 36, 39, 40, 45, 48, 50, 52, 60, 62, 65, 72, 75, 78, 80, 90, 93, 100, 104, 117, 120, 124, 130, 144, 150, 155, 156, 169, 180, 186, 195, 200, 208, 225, 234, 240, 248, 260, 279, 300, 310, 312, 325, 338, 360, 372, 390, 400, 403, 450, 465, 468, 496, 507, 520, 558, 585, 600, 620, 624, 650, 676, 720, 744, 775, 780, 806, 845, 900, 930, 936, 975, 1014, 1040, 1116, 1170, 1200, 1209, 1240, 1300, 1352, 1395, 1488, 1521, 1550, 1560, 1612, 1690, 1800, 1860, 1872, 1950, 2015, 2028, 2232, 2325, 2340, 2418, 2480, 2535, 2600, 2704, 2790, 2925, 3042, 3100, 3120, 3224, 3380, 3600, 3627, 3720, 3900, 4030, 4056, 4225, 4464, 4650, 4680, 4836, 5070, 5200, 5239, 5580, 5850, 6045, 6084, 6200, 6448, 6760, 6975, 7254, 7440, 7605, 7800, 8060, 8112, 8450, 9300, 9360, 9672, 10075, 10140, 10478, 11160, 11700, 12090, 12168, 12400, 12675, 13520, 13950, 14508, 15210, 15600, 15717, 16120, 16900, 18135, 18600, 19344, 20150, 20280, 20956, 22320, 23400, 24180, 24336, 25350, 26195, 27900, 29016, 30225, 30420, 31434, 32240, 33800, 36270, 37200, 38025, 40300, 40560, 41912, 46800, 47151, 48360, 50700, 52390, 55800, 58032, 60450, 60840, 62868, 67600, 72540, 76050, 78585, 80600, 83824, 90675, 94302, 96720, 101400, 104780, 111600, 120900, 121680, 125736, 130975, 145080, 152100, 157170, 161200, 181350, 188604, 202800, 209560, 235755, 241800, 251472, 261950, 290160, 304200, 314340, 362700, 377208, 392925, 419120, 471510, 483600, 523900, 608400, 628680, 725400, 754416, 785850, 943020, 1047800, 1178775, 1257360, 1450800, 1571700, 1886040, 2095600, 2357550, 3143400, 3772080, 4715100, 6286800, 9430200, 18860400]

約数ペア:

[(1, 18860400), (2, 9430200), (3, 6286800), (4, 4715100), (5, 3772080), (6, 3143400), (8, 2357550), (9, 2095600), (10, 1886040), (12, 1571700), (13, 1450800), (15, 1257360), (16, 1178775), (18, 1047800), (20, 943020), (24, 785850), (25, 754416), (26, 725400), (30, 628680), (31, 608400), (36, 523900), (39, 483600), (40, 471510), (45, 419120), (48, 392925), (50, 377208), (52, 362700), (60, 314340), (62, 304200), (65, 290160), (72, 261950), (75, 251472), (78, 241800), (80, 235755), (90, 209560), (93, 202800), (100, 188604), (104, 181350), (117, 161200), (120, 157170), (124, 152100), (130, 145080), (144, 130975), (150, 125736), (155, 121680), (156, 120900), (169, 111600), (180, 104780), (186, 101400), (195, 96720), (200, 94302), (208, 90675), (225, 83824), (234, 80600), (240, 78585), (248, 76050), (260, 72540), (279, 67600), (300, 62868), (310, 60840), (312, 60450), (325, 58032), (338, 55800), (360, 52390), (372, 50700), (390, 48360), (400, 47151), (403, 46800), (450, 41912), (465, 40560), (468, 40300), (496, 38025), (507, 37200), (520, 36270), (558, 33800), (585, 32240), (600, 31434), (620, 30420), (624, 30225), (650, 29016), (676, 27900), (720, 26195), (744, 25350), (775, 24336), (780, 24180), (806, 23400), (845, 22320), (900, 20956), (930, 20280), (936, 20150), (975, 19344), (1014, 18600), (1040, 18135), (1116, 16900), (1170, 16120), (1200, 15717), (1209, 15600), (1240, 15210), (1300, 14508), (1352, 13950), (1395, 13520), (1488, 12675), (1521, 12400), (1550, 12168), (1560, 12090), (1612, 11700), (1690, 11160), (1800, 10478), (1860, 10140), (1872, 10075), (1950, 9672), (2015, 9360), (2028, 9300), (2232, 8450), (2325, 8112), (2340, 8060), (2418, 7800), (2480, 7605), (2535, 7440), (2600, 7254), (2704, 6975), (2790, 6760), (2925, 6448), (3042, 6200), (3100, 6084), (3120, 6045), (3224, 5850), (3380, 5580), (3600, 5239), (3627, 5200), (3720, 5070), (3900, 4836), (4030, 4680), (4056, 4650), (4225, 4464)]