18018420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{42901}}^1$

素因数の和:42920

約数の個数: 48

約数和(自身を含む): 57660288

約数和(自身を除く): 39641868

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 42901, 85802, 128703, 171604, 214505, 257406, 300307, 429010, 514812, 600614, 643515, 858020, 900921, 1201228, 1287030, 1501535, 1801842, 2574060, 3003070, 3603684, 4504605, 6006140, 9009210, 18018420]

約数ペア:

[(1, 18018420), (2, 9009210), (3, 6006140), (4, 4504605), (5, 3603684), (6, 3003070), (7, 2574060), (10, 1801842), (12, 1501535), (14, 1287030), (15, 1201228), (20, 900921), (21, 858020), (28, 643515), (30, 600614), (35, 514812), (42, 429010), (60, 300307), (70, 257406), (84, 214505), (105, 171604), (140, 128703), (210, 85802), (420, 42901)]