26480405

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:309

約数の個数: 32

約数和(自身を含む): 37616640

約数和(自身を除く): 11136235

約数列:

[1, 5, 7, 35, 61, 79, 157, 305, 395, 427, 553, 785, 1099, 2135, 2765, 4819, 5495, 9577, 12403, 24095, 33733, 47885, 62015, 67039, 86821, 168665, 335195, 434105, 756583, 3782915, 5296081, 26480405]

約数ペア:

[(1, 26480405), (5, 5296081), (7, 3782915), (35, 756583), (61, 434105), (79, 335195), (157, 168665), (305, 86821), (395, 67039), (427, 62015), (553, 47885), (785, 33733), (1099, 24095), (2135, 12403), (2765, 9577), (4819, 5495)]