18891740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{5867}}^1$

素因数の和:5906

約数の個数: 48

約数和(自身を含む): 47319552

約数和(自身を除く): 28427812

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 5867, 11734, 23468, 29335, 41069, 58670, 82138, 117340, 134941, 164276, 205345, 269882, 410690, 539764, 674705, 821380, 944587, 1349410, 1889174, 2698820, 3778348, 4722935, 9445870, 18891740]

約数ペア:

[(1, 18891740), (2, 9445870), (4, 4722935), (5, 3778348), (7, 2698820), (10, 1889174), (14, 1349410), (20, 944587), (23, 821380), (28, 674705), (35, 539764), (46, 410690), (70, 269882), (92, 205345), (115, 164276), (140, 134941), (161, 117340), (230, 82138), (322, 58670), (460, 41069), (644, 29335), (805, 23468), (1610, 11734), (3220, 5867)]