88390640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{84991}}^1$

素因数の和:85017

約数の個数: 40

約数和(自身を含む): 221319168

約数和(自身を除く): 132928528

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 84991, 169982, 339964, 424955, 679928, 849910, 1104883, 1359856, 1699820, 2209766, 3399640, 4419532, 5524415, 6799280, 8839064, 11048830, 17678128, 22097660, 44195320, 88390640]

約数ペア:

[(1, 88390640), (2, 44195320), (4, 22097660), (5, 17678128), (8, 11048830), (10, 8839064), (13, 6799280), (16, 5524415), (20, 4419532), (26, 3399640), (40, 2209766), (52, 1699820), (65, 1359856), (80, 1104883), (104, 849910), (130, 679928), (208, 424955), (260, 339964), (520, 169982), (1040, 84991)]