71841640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{138157}}^1$

素因数の和:138181

約数の個数: 32

約数和(自身を含む): 174079080

約数和(自身を除く): 102237440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 138157, 276314, 552628, 690785, 1105256, 1381570, 1796041, 2763140, 3592082, 5526280, 7184164, 8980205, 14368328, 17960410, 35920820, 71841640]

約数ペア:

[(1, 71841640), (2, 35920820), (4, 17960410), (5, 14368328), (8, 8980205), (10, 7184164), (13, 5526280), (20, 3592082), (26, 2763140), (40, 1796041), (52, 1381570), (65, 1105256), (104, 690785), (130, 552628), (260, 276314), (520, 138157)]