656270

素因数分解:

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

素因数の和:140

約数の個数: 32

約数和(自身を含む): 1278720

約数和(自身を除く): 622450

約数列:

[1, 2, 5, 10, 29, 31, 58, 62, 73, 145, 146, 155, 290, 310, 365, 730, 899, 1798, 2117, 2263, 4234, 4495, 4526, 8990, 10585, 11315, 21170, 22630, 65627, 131254, 328135, 656270]

約数ペア:

[(1, 656270), (2, 328135), (5, 131254), (10, 65627), (29, 22630), (31, 21170), (58, 11315), (62, 10585), (73, 8990), (145, 4526), (146, 4495), (155, 4234), (290, 2263), (310, 2117), (365, 1798), (730, 899)]