1611940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{431}}^1$

素因数の和:468

約数の個数: 48

約数和(自身を含む): 3919104

約数和(自身を除く): 2307164

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 431, 748, 862, 935, 1724, 1870, 2155, 3740, 4310, 4741, 7327, 8620, 9482, 14654, 18964, 23705, 29308, 36635, 47410, 73270, 80597, 94820, 146540, 161194, 322388, 402985, 805970, 1611940]

約数ペア:

[(1, 1611940), (2, 805970), (4, 402985), (5, 322388), (10, 161194), (11, 146540), (17, 94820), (20, 80597), (22, 73270), (34, 47410), (44, 36635), (55, 29308), (68, 23705), (85, 18964), (110, 14654), (170, 9482), (187, 8620), (220, 7327), (340, 4741), (374, 4310), (431, 3740), (748, 2155), (862, 1870), (935, 1724)]