71230640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{68491}}^1$

素因数の和:68517

約数の個数: 40

約数和(自身を含む): 178353168

約数和(自身を除く): 107122528

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 68491, 136982, 273964, 342455, 547928, 684910, 890383, 1095856, 1369820, 1780766, 2739640, 3561532, 4451915, 5479280, 7123064, 8903830, 14246128, 17807660, 35615320, 71230640]

約数ペア:

[(1, 71230640), (2, 35615320), (4, 17807660), (5, 14246128), (8, 8903830), (10, 7123064), (13, 5479280), (16, 4451915), (20, 3561532), (26, 2739640), (40, 1780766), (52, 1369820), (65, 1095856), (80, 890383), (104, 684910), (130, 547928), (208, 342455), (260, 273964), (520, 136982), (1040, 68491)]