1991853505

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1\times {\mathrm{1609}}^1$

素因数の和:1873

約数の個数: 32

約数和(自身を含む): 2564150400

約数和(自身を除く): 572296895

約数列:

[1, 5, 19, 83, 95, 157, 415, 785, 1577, 1609, 2983, 7885, 8045, 13031, 14915, 30571, 65155, 133547, 152855, 247589, 252613, 667735, 1237945, 1263065, 2537393, 4799647, 12686965, 20966879, 23998235, 104834395, 398370701, 1991853505]

約数ペア:

[(1, 1991853505), (5, 398370701), (19, 104834395), (83, 23998235), (95, 20966879), (157, 12686965), (415, 4799647), (785, 2537393), (1577, 1263065), (1609, 1237945), (2983, 667735), (7885, 252613), (8045, 247589), (13031, 152855), (14915, 133547), (30571, 65155)]