311992990

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{4211}}^1$

素因数の和:4488

約数の個数: 32

約数和(自身を含む): 582266880

約数和(自身を除く): 270273890

約数列:

[1, 2, 5, 10, 31, 62, 155, 239, 310, 478, 1195, 2390, 4211, 7409, 8422, 14818, 21055, 37045, 42110, 74090, 130541, 261082, 652705, 1006429, 1305410, 2012858, 5032145, 10064290, 31199299, 62398598, 155996495, 311992990]

約数ペア:

[(1, 311992990), (2, 155996495), (5, 62398598), (10, 31199299), (31, 10064290), (62, 5032145), (155, 2012858), (239, 1305410), (310, 1006429), (478, 652705), (1195, 261082), (2390, 130541), (4211, 74090), (7409, 42110), (8422, 37045), (14818, 21055)]