78884740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{881}}^1$

素因数の和:949

約数の個数: 72

約数和(自身を含む): 187220376

約数和(自身を除く): 108335636

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 121, 148, 185, 220, 242, 370, 407, 484, 605, 740, 814, 881, 1210, 1628, 1762, 2035, 2420, 3524, 4070, 4405, 4477, 8140, 8810, 8954, 9691, 17620, 17908, 19382, 22385, 32597, 38764, 44770, 48455, 65194, 89540, 96910, 106601, 130388, 162985, 193820, 213202, 325970, 358567, 426404, 533005, 651940, 717134, 1066010, 1434268, 1792835, 2132020, 3585670, 3944237, 7171340, 7888474, 15776948, 19721185, 39442370, 78884740]

約数ペア:

[(1, 78884740), (2, 39442370), (4, 19721185), (5, 15776948), (10, 7888474), (11, 7171340), (20, 3944237), (22, 3585670), (37, 2132020), (44, 1792835), (55, 1434268), (74, 1066010), (110, 717134), (121, 651940), (148, 533005), (185, 426404), (220, 358567), (242, 325970), (370, 213202), (407, 193820), (484, 162985), (605, 130388), (740, 106601), (814, 96910), (881, 89540), (1210, 65194), (1628, 48455), (1762, 44770), (2035, 38764), (2420, 32597), (3524, 22385), (4070, 19382), (4405, 17908), (4477, 17620), (8140, 9691), (8810, 8954)]