18570020

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{2707}}^1$

素因数の和:2737

約数の個数: 48

約数和(自身を含む): 45494400

約数和(自身を除く): 26924380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 2707, 3430, 5414, 6860, 10828, 13535, 18949, 27070, 37898, 54140, 75796, 94745, 132643, 189490, 265286, 378980, 530572, 663215, 928501, 1326430, 1857002, 2652860, 3714004, 4642505, 9285010, 18570020]

約数ペア:

[(1, 18570020), (2, 9285010), (4, 4642505), (5, 3714004), (7, 2652860), (10, 1857002), (14, 1326430), (20, 928501), (28, 663215), (35, 530572), (49, 378980), (70, 265286), (98, 189490), (140, 132643), (196, 94745), (245, 75796), (343, 54140), (490, 37898), (686, 27070), (980, 18949), (1372, 13535), (1715, 10828), (2707, 6860), (3430, 5414)]