20100865

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{3163}}^1$

素因数の和:3240

約数の個数: 16

約数和(自身を含む): 25514496

約数和(自身を除く): 5413631

約数列:

[1, 5, 31, 41, 155, 205, 1271, 3163, 6355, 15815, 98053, 129683, 490265, 648415, 4020173, 20100865]

約数ペア:

[(1, 20100865), (5, 4020173), (31, 648415), (41, 490265), (155, 129683), (205, 98053), (1271, 15815), (3163, 6355)]