19762340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2621}}^1$

素因数の和:2672

約数の個数: 48

約数和(自身を含む): 46252080

約数和(自身を除く): 26489740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 260, 290, 377, 580, 754, 1508, 1885, 2621, 3770, 5242, 7540, 10484, 13105, 26210, 34073, 52420, 68146, 76009, 136292, 152018, 170365, 304036, 340730, 380045, 681460, 760090, 988117, 1520180, 1976234, 3952468, 4940585, 9881170, 19762340]

約数ペア:

[(1, 19762340), (2, 9881170), (4, 4940585), (5, 3952468), (10, 1976234), (13, 1520180), (20, 988117), (26, 760090), (29, 681460), (52, 380045), (58, 340730), (65, 304036), (116, 170365), (130, 152018), (145, 136292), (260, 76009), (290, 68146), (377, 52420), (580, 34073), (754, 26210), (1508, 13105), (1885, 10484), (2621, 7540), (3770, 5242)]