72001688

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{8101}}^1$

素因数の和:8219

約数の個数: 32

約数和(自身を含む): 148752720

約数和(自身を除く): 76751032

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 101, 202, 404, 808, 1111, 2222, 4444, 8101, 8888, 16202, 32404, 64808, 89111, 178222, 356444, 712888, 818201, 1636402, 3272804, 6545608, 9000211, 18000422, 36000844, 72001688]

約数ペア:

[(1, 72001688), (2, 36000844), (4, 18000422), (8, 9000211), (11, 6545608), (22, 3272804), (44, 1636402), (88, 818201), (101, 712888), (202, 356444), (404, 178222), (808, 89111), (1111, 64808), (2222, 32404), (4444, 16202), (8101, 8888)]