20019870

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{241}}^1$

素因数の和:338

約数の個数: 96

約数和(自身を含む): 57081024

約数和(自身を除く): 37061154

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 71, 78, 90, 117, 130, 142, 195, 213, 234, 241, 355, 390, 426, 482, 585, 639, 710, 723, 923, 1065, 1170, 1205, 1278, 1446, 1846, 2130, 2169, 2410, 2769, 3133, 3195, 3615, 4338, 4615, 5538, 6266, 6390, 7230, 8307, 9230, 9399, 10845, 13845, 15665, 16614, 17111, 18798, 21690, 27690, 28197, 31330, 34222, 41535, 46995, 51333, 56394, 83070, 85555, 93990, 102666, 140985, 153999, 171110, 222443, 256665, 281970, 307998, 444886, 513330, 667329, 769995, 1112215, 1334658, 1539990, 2001987, 2224430, 3336645, 4003974, 6673290, 10009935, 20019870]

約数ペア:

[(1, 20019870), (2, 10009935), (3, 6673290), (5, 4003974), (6, 3336645), (9, 2224430), (10, 2001987), (13, 1539990), (15, 1334658), (18, 1112215), (26, 769995), (30, 667329), (39, 513330), (45, 444886), (65, 307998), (71, 281970), (78, 256665), (90, 222443), (117, 171110), (130, 153999), (142, 140985), (195, 102666), (213, 93990), (234, 85555), (241, 83070), (355, 56394), (390, 51333), (426, 46995), (482, 41535), (585, 34222), (639, 31330), (710, 28197), (723, 27690), (923, 21690), (1065, 18798), (1170, 17111), (1205, 16614), (1278, 15665), (1446, 13845), (1846, 10845), (2130, 9399), (2169, 9230), (2410, 8307), (2769, 7230), (3133, 6390), (3195, 6266), (3615, 5538), (4338, 4615)]