18707880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1$

素因数の和:199

約数の個数: 128

約数和(自身を含む): 59719680

約数和(自身を除く): 41011800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 47, 60, 62, 93, 94, 107, 120, 124, 141, 155, 186, 188, 214, 235, 248, 282, 310, 321, 372, 376, 428, 465, 470, 535, 564, 620, 642, 705, 744, 856, 930, 940, 1070, 1128, 1240, 1284, 1410, 1457, 1605, 1860, 1880, 2140, 2568, 2820, 2914, 3210, 3317, 3720, 4280, 4371, 5029, 5640, 5828, 6420, 6634, 7285, 8742, 9951, 10058, 11656, 12840, 13268, 14570, 15087, 16585, 17484, 19902, 20116, 21855, 25145, 26536, 29140, 30174, 33170, 34968, 39804, 40232, 43710, 49755, 50290, 58280, 60348, 66340, 75435, 79608, 87420, 99510, 100580, 120696, 132680, 150870, 155899, 174840, 199020, 201160, 301740, 311798, 398040, 467697, 603480, 623596, 779495, 935394, 1247192, 1558990, 1870788, 2338485, 3117980, 3741576, 4676970, 6235960, 9353940, 18707880]

約数ペア:

[(1, 18707880), (2, 9353940), (3, 6235960), (4, 4676970), (5, 3741576), (6, 3117980), (8, 2338485), (10, 1870788), (12, 1558990), (15, 1247192), (20, 935394), (24, 779495), (30, 623596), (31, 603480), (40, 467697), (47, 398040), (60, 311798), (62, 301740), (93, 201160), (94, 199020), (107, 174840), (120, 155899), (124, 150870), (141, 132680), (155, 120696), (186, 100580), (188, 99510), (214, 87420), (235, 79608), (248, 75435), (282, 66340), (310, 60348), (321, 58280), (372, 50290), (376, 49755), (428, 43710), (465, 40232), (470, 39804), (535, 34968), (564, 33170), (620, 30174), (642, 29140), (705, 26536), (744, 25145), (856, 21855), (930, 20116), (940, 19902), (1070, 17484), (1128, 16585), (1240, 15087), (1284, 14570), (1410, 13268), (1457, 12840), (1605, 11656), (1860, 10058), (1880, 9951), (2140, 8742), (2568, 7285), (2820, 6634), (2914, 6420), (3210, 5828), (3317, 5640), (3720, 5029), (4280, 4371)]