1312540

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:142

約数の個数: 48

約数和(自身を含む): 2983680

約数和(自身を除く): 1671140

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 62, 73, 116, 124, 145, 146, 155, 290, 292, 310, 365, 580, 620, 730, 899, 1460, 1798, 2117, 2263, 3596, 4234, 4495, 4526, 8468, 8990, 9052, 10585, 11315, 17980, 21170, 22630, 42340, 45260, 65627, 131254, 262508, 328135, 656270, 1312540]

約数ペア:

[(1, 1312540), (2, 656270), (4, 328135), (5, 262508), (10, 131254), (20, 65627), (29, 45260), (31, 42340), (58, 22630), (62, 21170), (73, 17980), (116, 11315), (124, 10585), (145, 9052), (146, 8990), (155, 8468), (290, 4526), (292, 4495), (310, 4234), (365, 3596), (580, 2263), (620, 2117), (730, 1798), (899, 1460)]