8007740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1621}}^1$

素因数の和:1662

約数の個数: 48

約数和(自身を含む): 19074720

約数和(自身を除く): 11066980

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 1621, 2470, 3242, 4940, 6484, 8105, 16210, 21073, 30799, 32420, 42146, 61598, 84292, 105365, 123196, 153995, 210730, 307990, 400387, 421460, 615980, 800774, 1601548, 2001935, 4003870, 8007740]

約数ペア:

[(1, 8007740), (2, 4003870), (4, 2001935), (5, 1601548), (10, 800774), (13, 615980), (19, 421460), (20, 400387), (26, 307990), (38, 210730), (52, 153995), (65, 123196), (76, 105365), (95, 84292), (130, 61598), (190, 42146), (247, 32420), (260, 30799), (380, 21073), (494, 16210), (988, 8105), (1235, 6484), (1621, 4940), (2470, 3242)]