51951640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{99907}}^1$

素因数の和:99931

約数の個数: 32

約数和(自身を含む): 125884080

約数和(自身を除く): 73932440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 99907, 199814, 399628, 499535, 799256, 999070, 1298791, 1998140, 2597582, 3996280, 5195164, 6493955, 10390328, 12987910, 25975820, 51951640]

約数ペア:

[(1, 51951640), (2, 25975820), (4, 12987910), (5, 10390328), (8, 6493955), (10, 5195164), (13, 3996280), (20, 2597582), (26, 1998140), (40, 1298791), (52, 999070), (65, 799256), (104, 499535), (130, 399628), (260, 199814), (520, 99907)]