81475702

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:317

約数の個数: 64

約数和(自身を含む): 159344640

約数和(自身を除く): 77868938

約数列:

[1, 2, 7, 11, 14, 22, 37, 74, 77, 79, 154, 158, 181, 259, 362, 407, 518, 553, 814, 869, 1106, 1267, 1738, 1991, 2534, 2849, 2923, 3982, 5698, 5846, 6083, 6697, 12166, 13394, 13937, 14299, 20461, 27874, 28598, 32153, 40922, 46879, 64306, 73667, 93758, 100093, 147334, 157289, 200186, 225071, 314578, 450142, 515669, 529063, 1031338, 1058126, 1101023, 2202046, 3703441, 5819693, 7406882, 11639386, 40737851, 81475702]

約数ペア:

[(1, 81475702), (2, 40737851), (7, 11639386), (11, 7406882), (14, 5819693), (22, 3703441), (37, 2202046), (74, 1101023), (77, 1058126), (79, 1031338), (154, 529063), (158, 515669), (181, 450142), (259, 314578), (362, 225071), (407, 200186), (518, 157289), (553, 147334), (814, 100093), (869, 93758), (1106, 73667), (1267, 64306), (1738, 46879), (1991, 40922), (2534, 32153), (2849, 28598), (2923, 27874), (3982, 20461), (5698, 14299), (5846, 13937), (6083, 13394), (6697, 12166)]