20442860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2339}}^1$

素因数の和:2390

約数の個数: 48

約数和(自身を含む): 47174400

約数和(自身を除く): 26731540

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 76, 92, 95, 115, 190, 230, 380, 437, 460, 874, 1748, 2185, 2339, 4370, 4678, 8740, 9356, 11695, 23390, 44441, 46780, 53797, 88882, 107594, 177764, 215188, 222205, 268985, 444410, 537970, 888820, 1022143, 1075940, 2044286, 4088572, 5110715, 10221430, 20442860]

約数ペア:

[(1, 20442860), (2, 10221430), (4, 5110715), (5, 4088572), (10, 2044286), (19, 1075940), (20, 1022143), (23, 888820), (38, 537970), (46, 444410), (76, 268985), (92, 222205), (95, 215188), (115, 177764), (190, 107594), (230, 88882), (380, 53797), (437, 46780), (460, 44441), (874, 23390), (1748, 11695), (2185, 9356), (2339, 8740), (4370, 4678)]