31431220

素因数分解:

$2^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{6521}}^1$

素因数の和:6771

約数の個数: 24

約数和(自身を含む): 66289608

約数和(自身を除く): 34858388

約数列:

[1, 2, 4, 5, 10, 20, 241, 482, 964, 1205, 2410, 4820, 6521, 13042, 26084, 32605, 65210, 130420, 1571561, 3143122, 6286244, 7857805, 15715610, 31431220]

約数ペア:

[(1, 31431220), (2, 15715610), (4, 7857805), (5, 6286244), (10, 3143122), (20, 1571561), (241, 130420), (482, 65210), (964, 32605), (1205, 26084), (2410, 13042), (4820, 6521)]