28392520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{54601}}^1$

素因数の和:54625

約数の個数: 32

約数和(自身を含む): 68798520

約数和(自身を除く): 40406000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 54601, 109202, 218404, 273005, 436808, 546010, 709813, 1092020, 1419626, 2184040, 2839252, 3549065, 5678504, 7098130, 14196260, 28392520]

約数ペア:

[(1, 28392520), (2, 14196260), (4, 7098130), (5, 5678504), (8, 3549065), (10, 2839252), (13, 2184040), (20, 1419626), (26, 1092020), (40, 709813), (52, 546010), (65, 436808), (104, 273005), (130, 218404), (260, 109202), (520, 54601)]