31893940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{509}}^1$

素因数の和:772

約数の個数: 48

約数和(自身を含む): 72570960

約数和(自身を除く): 40677020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 241, 260, 482, 509, 964, 1018, 1205, 2036, 2410, 2545, 3133, 4820, 5090, 6266, 6617, 10180, 12532, 13234, 15665, 26468, 31330, 33085, 62660, 66170, 122669, 132340, 245338, 490676, 613345, 1226690, 1594697, 2453380, 3189394, 6378788, 7973485, 15946970, 31893940]

約数ペア:

[(1, 31893940), (2, 15946970), (4, 7973485), (5, 6378788), (10, 3189394), (13, 2453380), (20, 1594697), (26, 1226690), (52, 613345), (65, 490676), (130, 245338), (241, 132340), (260, 122669), (482, 66170), (509, 62660), (964, 33085), (1018, 31330), (1205, 26468), (2036, 15665), (2410, 13234), (2545, 12532), (3133, 10180), (4820, 6617), (5090, 6266)]