31710640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{30491}}^1$

素因数の和:30517

約数の個数: 40

約数和(自身を含む): 79401168

約数和(自身を除く): 47690528

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 30491, 60982, 121964, 152455, 243928, 304910, 396383, 487856, 609820, 792766, 1219640, 1585532, 1981915, 2439280, 3171064, 3963830, 6342128, 7927660, 15855320, 31710640]

約数ペア:

[(1, 31710640), (2, 15855320), (4, 7927660), (5, 6342128), (8, 3963830), (10, 3171064), (13, 2439280), (16, 1981915), (20, 1585532), (26, 1219640), (40, 792766), (52, 609820), (65, 487856), (80, 396383), (104, 304910), (130, 243928), (208, 152455), (260, 121964), (520, 60982), (1040, 30491)]