18503740

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{523}}^1$

素因数の和:622

約数の個数: 48

約数和(自身を含む): 40934880

約数和(自身を除く): 22431140

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 61, 116, 122, 145, 244, 290, 305, 523, 580, 610, 1046, 1220, 1769, 2092, 2615, 3538, 5230, 7076, 8845, 10460, 15167, 17690, 30334, 31903, 35380, 60668, 63806, 75835, 127612, 151670, 159515, 303340, 319030, 638060, 925187, 1850374, 3700748, 4625935, 9251870, 18503740]

約数ペア:

[(1, 18503740), (2, 9251870), (4, 4625935), (5, 3700748), (10, 1850374), (20, 925187), (29, 638060), (58, 319030), (61, 303340), (116, 159515), (122, 151670), (145, 127612), (244, 75835), (290, 63806), (305, 60668), (523, 35380), (580, 31903), (610, 30334), (1046, 17690), (1220, 15167), (1769, 10460), (2092, 8845), (2615, 7076), (3538, 5230)]