17689220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{277}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 38857728

約数和(自身を除く): 21168508

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 103, 124, 155, 206, 277, 310, 412, 515, 554, 620, 1030, 1108, 1385, 2060, 2770, 3193, 5540, 6386, 8587, 12772, 15965, 17174, 28531, 31930, 34348, 42935, 57062, 63860, 85870, 114124, 142655, 171740, 285310, 570620, 884461, 1768922, 3537844, 4422305, 8844610, 17689220]

約数ペア:

[(1, 17689220), (2, 8844610), (4, 4422305), (5, 3537844), (10, 1768922), (20, 884461), (31, 570620), (62, 285310), (103, 171740), (124, 142655), (155, 114124), (206, 85870), (277, 63860), (310, 57062), (412, 42935), (515, 34348), (554, 31930), (620, 28531), (1030, 17174), (1108, 15965), (1385, 12772), (2060, 8587), (2770, 6386), (3193, 5540)]