8047820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{233}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 18633888

約数和(自身を除く): 10586068

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 157, 220, 233, 314, 466, 628, 785, 932, 1165, 1570, 1727, 2330, 2563, 3140, 3454, 4660, 5126, 6908, 8635, 10252, 12815, 17270, 25630, 34540, 36581, 51260, 73162, 146324, 182905, 365810, 402391, 731620, 804782, 1609564, 2011955, 4023910, 8047820]

約数ペア:

[(1, 8047820), (2, 4023910), (4, 2011955), (5, 1609564), (10, 804782), (11, 731620), (20, 402391), (22, 365810), (44, 182905), (55, 146324), (110, 73162), (157, 51260), (220, 36581), (233, 34540), (314, 25630), (466, 17270), (628, 12815), (785, 10252), (932, 8635), (1165, 6908), (1570, 5126), (1727, 4660), (2330, 3454), (2563, 3140)]