90327640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173707}}^1$

素因数の和:173731

約数の個数: 32

約数和(自身を含む): 218872080

約数和(自身を除く): 128544440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 173707, 347414, 694828, 868535, 1389656, 1737070, 2258191, 3474140, 4516382, 6948280, 9032764, 11290955, 18065528, 22581910, 45163820, 90327640]

約数ペア:

[(1, 90327640), (2, 45163820), (4, 22581910), (5, 18065528), (8, 11290955), (10, 9032764), (13, 6948280), (20, 4516382), (26, 3474140), (40, 2258191), (52, 1737070), (65, 1389656), (104, 868535), (130, 694828), (260, 347414), (520, 173707)]