31800730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{607}}^1$

素因数の和:671

約数の個数: 48

約数和(自身を含む): 64088064

約数和(自身を除く): 32287334

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 169, 310, 338, 403, 607, 806, 845, 1214, 1690, 2015, 3035, 4030, 5239, 6070, 7891, 10478, 15782, 18817, 26195, 37634, 39455, 52390, 78910, 94085, 102583, 188170, 205166, 244621, 489242, 512915, 1025830, 1223105, 2446210, 3180073, 6360146, 15900365, 31800730]

約数ペア:

[(1, 31800730), (2, 15900365), (5, 6360146), (10, 3180073), (13, 2446210), (26, 1223105), (31, 1025830), (62, 512915), (65, 489242), (130, 244621), (155, 205166), (169, 188170), (310, 102583), (338, 94085), (403, 78910), (607, 52390), (806, 39455), (845, 37634), (1214, 26195), (1690, 18817), (2015, 15782), (3035, 10478), (4030, 7891), (5239, 6070)]