21707208120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{448867}}^1$

素因数の和:448925

約数の個数: 128

約数和(自身を含む): 72393431040

約数和(自身を除く): 50686222920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 31, 39, 40, 52, 60, 62, 65, 78, 93, 104, 120, 124, 130, 155, 156, 186, 195, 248, 260, 310, 312, 372, 390, 403, 465, 520, 620, 744, 780, 806, 930, 1209, 1240, 1560, 1612, 1860, 2015, 2418, 3224, 3720, 4030, 4836, 6045, 8060, 9672, 12090, 16120, 24180, 48360, 448867, 897734, 1346601, 1795468, 2244335, 2693202, 3590936, 4488670, 5386404, 5835271, 6733005, 8977340, 10772808, 11670542, 13466010, 13914877, 17505813, 17954680, 23341084, 26932020, 27829754, 29176355, 35011626, 41744631, 46682168, 53864040, 55659508, 58352710, 69574385, 70023252, 83489262, 87529065, 111319016, 116705420, 139148770, 140046504, 166978524, 175058130, 180893401, 208723155, 233410840, 278297540, 333957048, 350116260, 361786802, 417446310, 542680203, 556595080, 700232520, 723573604, 834892620, 904467005, 1085360406, 1447147208, 1669785240, 1808934010, 2170720812, 2713401015, 3617868020, 4341441624, 5426802030, 7235736040, 10853604060, 21707208120]

約数ペア:

[(1, 21707208120), (2, 10853604060), (3, 7235736040), (4, 5426802030), (5, 4341441624), (6, 3617868020), (8, 2713401015), (10, 2170720812), (12, 1808934010), (13, 1669785240), (15, 1447147208), (20, 1085360406), (24, 904467005), (26, 834892620), (30, 723573604), (31, 700232520), (39, 556595080), (40, 542680203), (52, 417446310), (60, 361786802), (62, 350116260), (65, 333957048), (78, 278297540), (93, 233410840), (104, 208723155), (120, 180893401), (124, 175058130), (130, 166978524), (155, 140046504), (156, 139148770), (186, 116705420), (195, 111319016), (248, 87529065), (260, 83489262), (310, 70023252), (312, 69574385), (372, 58352710), (390, 55659508), (403, 53864040), (465, 46682168), (520, 41744631), (620, 35011626), (744, 29176355), (780, 27829754), (806, 26932020), (930, 23341084), (1209, 17954680), (1240, 17505813), (1560, 13914877), (1612, 13466010), (1860, 11670542), (2015, 10772808), (2418, 8977340), (3224, 6733005), (3720, 5835271), (4030, 5386404), (4836, 4488670), (6045, 3590936), (8060, 2693202), (9672, 2244335), (12090, 1795468), (16120, 1346601), (24180, 897734), (48360, 448867)]