78546980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{95789}}^1$

素因数の和:95839

約数の個数: 24

約数和(自身を含む): 168973560

約数和(自身を除く): 90426580

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 95789, 191578, 383156, 478945, 957890, 1915780, 3927349, 7854698, 15709396, 19636745, 39273490, 78546980]

約数ペア:

[(1, 78546980), (2, 39273490), (4, 19636745), (5, 15709396), (10, 7854698), (20, 3927349), (41, 1915780), (82, 957890), (164, 478945), (205, 383156), (410, 191578), (820, 95789)]