990254580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{2357749}}^1$

素因数の和:2357768

約数の個数: 48

約数和(自身を含む): 3168816000

約数和(自身を除く): 2178561420

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, 2357749, 4715498, 7073247, 9430996, 11788745, 14146494, 16504243, 23577490, 28292988, 33008486, 35366235, 47154980, 49512729, 66016972, 70732470, 82521215, 99025458, 141464940, 165042430, 198050916, 247563645, 330084860, 495127290, 990254580]

約数ペア:

[(1, 990254580), (2, 495127290), (3, 330084860), (4, 247563645), (5, 198050916), (6, 165042430), (7, 141464940), (10, 99025458), (12, 82521215), (14, 70732470), (15, 66016972), (20, 49512729), (21, 47154980), (28, 35366235), (30, 33008486), (35, 28292988), (42, 23577490), (60, 16504243), (70, 14146494), (84, 11788745), (105, 9430996), (140, 7073247), (210, 4715498), (420, 2357749)]