78909968

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{69463}}^1$

素因数の和:69542

約数の個数: 20

約数和(自身を含む): 155043648

約数和(自身を除く): 76133680

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 69463, 138926, 277852, 555704, 1111408, 4931873, 9863746, 19727492, 39454984, 78909968]

約数ペア:

[(1, 78909968), (2, 39454984), (4, 19727492), (8, 9863746), (16, 4931873), (71, 1111408), (142, 555704), (284, 277852), (568, 138926), (1136, 69463)]