178113520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{171263}}^1$

素因数の和:171289

約数の個数: 40

約数和(自身を含む): 445971456

約数和(自身を除く): 267857936

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 171263, 342526, 685052, 856315, 1370104, 1712630, 2226419, 2740208, 3425260, 4452838, 6850520, 8905676, 11132095, 13701040, 17811352, 22264190, 35622704, 44528380, 89056760, 178113520]

約数ペア:

[(1, 178113520), (2, 89056760), (4, 44528380), (5, 35622704), (8, 22264190), (10, 17811352), (13, 13701040), (16, 11132095), (20, 8905676), (26, 6850520), (40, 4452838), (52, 3425260), (65, 2740208), (80, 2226419), (104, 1712630), (130, 1370104), (208, 856315), (260, 685052), (520, 342526), (1040, 171263)]