78399140

素因数分解:

$2^2\times 5^1\times {\mathrm{1217}}^1\times {\mathrm{3221}}^1$

素因数の和:4447

約数の個数: 24

約数和(自身を含む): 164824632

約数和(自身を除く): 86425492

約数列:

[1, 2, 4, 5, 10, 20, 1217, 2434, 3221, 4868, 6085, 6442, 12170, 12884, 16105, 24340, 32210, 64420, 3919957, 7839914, 15679828, 19599785, 39199570, 78399140]

約数ペア:

[(1, 78399140), (2, 39199570), (4, 19599785), (5, 15679828), (10, 7839914), (20, 3919957), (1217, 64420), (2434, 32210), (3221, 24340), (4868, 16105), (6085, 12884), (6442, 12170)]