685360

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{659}}^1$

素因数の和:685

約数の個数: 40

約数和(自身を含む): 1718640

約数和(自身を除く): 1033280

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 659, 1040, 1318, 2636, 3295, 5272, 6590, 8567, 10544, 13180, 17134, 26360, 34268, 42835, 52720, 68536, 85670, 137072, 171340, 342680, 685360]

約数ペア:

[(1, 685360), (2, 342680), (4, 171340), (5, 137072), (8, 85670), (10, 68536), (13, 52720), (16, 42835), (20, 34268), (26, 26360), (40, 17134), (52, 13180), (65, 10544), (80, 8567), (104, 6590), (130, 5272), (208, 3295), (260, 2636), (520, 1318), (659, 1040)]