17717405

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 23760000

約数和(自身を除く): 6042595

約数列:

[1, 5, 19, 29, 59, 95, 109, 145, 295, 545, 551, 1121, 1711, 2071, 2755, 3161, 5605, 6431, 8555, 10355, 15805, 32155, 32509, 60059, 122189, 162545, 186499, 300295, 610945, 932495, 3543481, 17717405]

約数ペア:

[(1, 17717405), (5, 3543481), (19, 932495), (29, 610945), (59, 300295), (95, 186499), (109, 162545), (145, 122189), (295, 60059), (545, 32509), (551, 32155), (1121, 15805), (1711, 10355), (2071, 8555), (2755, 6431), (3161, 5605)]