4065620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{823}}^1$

素因数の和:864

約数の個数: 48

約数和(自身を含む): 9690240

約数和(自身を除く): 5624620

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 823, 988, 1235, 1646, 2470, 3292, 4115, 4940, 8230, 10699, 15637, 16460, 21398, 31274, 42796, 53495, 62548, 78185, 106990, 156370, 203281, 213980, 312740, 406562, 813124, 1016405, 2032810, 4065620]

約数ペア:

[(1, 4065620), (2, 2032810), (4, 1016405), (5, 813124), (10, 406562), (13, 312740), (19, 213980), (20, 203281), (26, 156370), (38, 106990), (52, 78185), (65, 62548), (76, 53495), (95, 42796), (130, 31274), (190, 21398), (247, 16460), (260, 15637), (380, 10699), (494, 8230), (823, 4940), (988, 4115), (1235, 3292), (1646, 2470)]