827246620

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{491}}^1\times {\mathrm{1381}}^1$

素因数の和:1942

約数の個数: 48

約数和(自身を含む): 1770574176

約数和(自身を除く): 943327556

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 491, 610, 982, 1220, 1381, 1964, 2455, 2762, 4910, 5524, 6905, 9820, 13810, 27620, 29951, 59902, 84241, 119804, 149755, 168482, 299510, 336964, 421205, 599020, 678071, 842410, 1356142, 1684820, 2712284, 3390355, 6780710, 13561420, 41362331, 82724662, 165449324, 206811655, 413623310, 827246620]

約数ペア:

[(1, 827246620), (2, 413623310), (4, 206811655), (5, 165449324), (10, 82724662), (20, 41362331), (61, 13561420), (122, 6780710), (244, 3390355), (305, 2712284), (491, 1684820), (610, 1356142), (982, 842410), (1220, 678071), (1381, 599020), (1964, 421205), (2455, 336964), (2762, 299510), (4910, 168482), (5524, 149755), (6905, 119804), (9820, 84241), (13810, 59902), (27620, 29951)]