656360

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{269}}^1$

素因数の和:341

約数の個数: 32

約数和(自身を含む): 1506600

約数和(自身を除く): 850240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 269, 305, 488, 538, 610, 1076, 1220, 1345, 2152, 2440, 2690, 5380, 10760, 16409, 32818, 65636, 82045, 131272, 164090, 328180, 656360]

約数ペア:

[(1, 656360), (2, 328180), (4, 164090), (5, 131272), (8, 82045), (10, 65636), (20, 32818), (40, 16409), (61, 10760), (122, 5380), (244, 2690), (269, 2440), (305, 2152), (488, 1345), (538, 1220), (610, 1076)]