1138940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 2709504

約数和(自身を除く): 1570564

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 167, 220, 310, 334, 341, 620, 668, 682, 835, 1364, 1670, 1705, 1837, 3340, 3410, 3674, 5177, 6820, 7348, 9185, 10354, 18370, 20708, 25885, 36740, 51770, 56947, 103540, 113894, 227788, 284735, 569470, 1138940]

約数ペア:

[(1, 1138940), (2, 569470), (4, 284735), (5, 227788), (10, 113894), (11, 103540), (20, 56947), (22, 51770), (31, 36740), (44, 25885), (55, 20708), (62, 18370), (110, 10354), (124, 9185), (155, 7348), (167, 6820), (220, 5177), (310, 3674), (334, 3410), (341, 3340), (620, 1837), (668, 1705), (682, 1670), (835, 1364)]