18999820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{1201}}^1$

素因数の和:1330

約数の個数: 48

約数和(自身を含む): 46041408

約数和(自身を除く): 27041588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 113, 140, 226, 452, 565, 791, 1130, 1201, 1582, 2260, 2402, 3164, 3955, 4804, 6005, 7910, 8407, 12010, 15820, 16814, 24020, 33628, 42035, 84070, 135713, 168140, 271426, 542852, 678565, 949991, 1357130, 1899982, 2714260, 3799964, 4749955, 9499910, 18999820]

約数ペア:

[(1, 18999820), (2, 9499910), (4, 4749955), (5, 3799964), (7, 2714260), (10, 1899982), (14, 1357130), (20, 949991), (28, 678565), (35, 542852), (70, 271426), (113, 168140), (140, 135713), (226, 84070), (452, 42035), (565, 33628), (791, 24020), (1130, 16814), (1201, 15820), (1582, 12010), (2260, 8407), (2402, 7910), (3164, 6005), (3955, 4804)]