639883970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{51479}}^1$

素因数の和:51610

約数の個数: 32

約数和(自身を含む): 1267643520

約数和(自身を除く): 627759550

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 113, 226, 565, 1130, 1243, 2486, 6215, 12430, 51479, 102958, 257395, 514790, 566269, 1132538, 2831345, 5662690, 5817127, 11634254, 29085635, 58171270, 63988397, 127976794, 319941985, 639883970]

約数ペア:

[(1, 639883970), (2, 319941985), (5, 127976794), (10, 63988397), (11, 58171270), (22, 29085635), (55, 11634254), (110, 5817127), (113, 5662690), (226, 2831345), (565, 1132538), (1130, 566269), (1243, 514790), (2486, 257395), (6215, 102958), (12430, 51479)]