18404260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2797}}^1$

素因数の和:2860

約数の個数: 48

約数和(自身を含む): 45126144

約数和(自身を除く): 26721884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 2797, 3290, 5594, 6580, 11188, 13985, 19579, 27970, 39158, 55940, 78316, 97895, 131459, 195790, 262918, 391580, 525836, 657295, 920213, 1314590, 1840426, 2629180, 3680852, 4601065, 9202130, 18404260]

約数ペア:

[(1, 18404260), (2, 9202130), (4, 4601065), (5, 3680852), (7, 2629180), (10, 1840426), (14, 1314590), (20, 920213), (28, 657295), (35, 525836), (47, 391580), (70, 262918), (94, 195790), (140, 131459), (188, 97895), (235, 78316), (329, 55940), (470, 39158), (658, 27970), (940, 19579), (1316, 13985), (1645, 11188), (2797, 6580), (3290, 5594)]