1388346340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{359}}^1\times {\mathrm{10177}}^1$

素因数の和:10564

約数の個数: 48

約数和(自身を含む): 3077827200

約数和(自身を除く): 1689480860

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 359, 380, 718, 1436, 1795, 3590, 6821, 7180, 10177, 13642, 20354, 27284, 34105, 40708, 50885, 68210, 101770, 136420, 193363, 203540, 386726, 773452, 966815, 1933630, 3653543, 3867260, 7307086, 14614172, 18267715, 36535430, 69417317, 73070860, 138834634, 277669268, 347086585, 694173170, 1388346340]

約数ペア:

[(1, 1388346340), (2, 694173170), (4, 347086585), (5, 277669268), (10, 138834634), (19, 73070860), (20, 69417317), (38, 36535430), (76, 18267715), (95, 14614172), (190, 7307086), (359, 3867260), (380, 3653543), (718, 1933630), (1436, 966815), (1795, 773452), (3590, 386726), (6821, 203540), (7180, 193363), (10177, 136420), (13642, 101770), (20354, 68210), (27284, 50885), (34105, 40708)]