80728440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{51749}}^1$

素因数の和:51776

約数の個数: 64

約数和(自身を含む): 260820000

約数和(自身を除く): 180091560

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, 195, 260, 312, 390, 520, 780, 1560, 51749, 103498, 155247, 206996, 258745, 310494, 413992, 517490, 620988, 672737, 776235, 1034980, 1241976, 1345474, 1552470, 2018211, 2069960, 2690948, 3104940, 3363685, 4036422, 5381896, 6209880, 6727370, 8072844, 10091055, 13454740, 16145688, 20182110, 26909480, 40364220, 80728440]

約数ペア:

[(1, 80728440), (2, 40364220), (3, 26909480), (4, 20182110), (5, 16145688), (6, 13454740), (8, 10091055), (10, 8072844), (12, 6727370), (13, 6209880), (15, 5381896), (20, 4036422), (24, 3363685), (26, 3104940), (30, 2690948), (39, 2069960), (40, 2018211), (52, 1552470), (60, 1345474), (65, 1241976), (78, 1034980), (104, 776235), (120, 672737), (130, 620988), (156, 517490), (195, 413992), (260, 310494), (312, 258745), (390, 206996), (520, 155247), (780, 103498), (1560, 51749)]