640435515

素因数分解:

$3^1\times 5^1\times {\mathrm{1061}}^1\times {\mathrm{40241}}^1$

素因数の和:41310

約数の個数: 16

約数和(自身を含む): 1025688096

約数和(自身を除く): 385252581

約数列:

[1, 3, 5, 15, 1061, 3183, 5305, 15915, 40241, 120723, 201205, 603615, 42695701, 128087103, 213478505, 640435515]

約数ペア:

[(1, 640435515), (3, 213478505), (5, 128087103), (15, 42695701), (1061, 603615), (3183, 201205), (5305, 120723), (15915, 40241)]