20543640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1013}}^1$

素因数の和:1053

約数の個数: 96

約数和(自身を含む): 66802320

約数和(自身を除く): 46258680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 169, 195, 260, 312, 338, 390, 507, 520, 676, 780, 845, 1013, 1014, 1352, 1560, 1690, 2026, 2028, 2535, 3039, 3380, 4052, 4056, 5065, 5070, 6078, 6760, 8104, 10130, 10140, 12156, 13169, 15195, 20260, 20280, 24312, 26338, 30390, 39507, 40520, 52676, 60780, 65845, 79014, 105352, 121560, 131690, 158028, 171197, 197535, 263380, 316056, 342394, 395070, 513591, 526760, 684788, 790140, 855985, 1027182, 1369576, 1580280, 1711970, 2054364, 2567955, 3423940, 4108728, 5135910, 6847880, 10271820, 20543640]

約数ペア:

[(1, 20543640), (2, 10271820), (3, 6847880), (4, 5135910), (5, 4108728), (6, 3423940), (8, 2567955), (10, 2054364), (12, 1711970), (13, 1580280), (15, 1369576), (20, 1027182), (24, 855985), (26, 790140), (30, 684788), (39, 526760), (40, 513591), (52, 395070), (60, 342394), (65, 316056), (78, 263380), (104, 197535), (120, 171197), (130, 158028), (156, 131690), (169, 121560), (195, 105352), (260, 79014), (312, 65845), (338, 60780), (390, 52676), (507, 40520), (520, 39507), (676, 30390), (780, 26338), (845, 24312), (1013, 20280), (1014, 20260), (1352, 15195), (1560, 13169), (1690, 12156), (2026, 10140), (2028, 10130), (2535, 8104), (3039, 6760), (3380, 6078), (4052, 5070), (4056, 5065)]