164072020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{419}}^1\times {\mathrm{2797}}^1$

素因数の和:3232

約数の個数: 48

約数和(自身を含む): 394853760

約数和(自身を除く): 230781740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 419, 838, 1676, 2095, 2797, 2933, 4190, 5594, 5866, 8380, 11188, 11732, 13985, 14665, 19579, 27970, 29330, 39158, 55940, 58660, 78316, 97895, 195790, 391580, 1171943, 2343886, 4687772, 5859715, 8203601, 11719430, 16407202, 23438860, 32814404, 41018005, 82036010, 164072020]

約数ペア:

[(1, 164072020), (2, 82036010), (4, 41018005), (5, 32814404), (7, 23438860), (10, 16407202), (14, 11719430), (20, 8203601), (28, 5859715), (35, 4687772), (70, 2343886), (140, 1171943), (419, 391580), (838, 195790), (1676, 97895), (2095, 78316), (2797, 58660), (2933, 55940), (4190, 39158), (5594, 29330), (5866, 27970), (8380, 19579), (11188, 14665), (11732, 13985)]