81263315

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 121888800

約数和(自身を除く): 40625485

約数列:

[1, 5, 7, 17, 35, 49, 85, 109, 119, 179, 245, 545, 595, 763, 833, 895, 1253, 1853, 3043, 3815, 4165, 5341, 6265, 8771, 9265, 12971, 15215, 19511, 21301, 26705, 43855, 64855, 90797, 97555, 106505, 136577, 149107, 331687, 453985, 682885, 745535, 956039, 1658435, 2321809, 4780195, 11609045, 16252663, 81263315]

約数ペア:

[(1, 81263315), (5, 16252663), (7, 11609045), (17, 4780195), (35, 2321809), (49, 1658435), (85, 956039), (109, 745535), (119, 682885), (179, 453985), (245, 331687), (545, 149107), (595, 136577), (763, 106505), (833, 97555), (895, 90797), (1253, 64855), (1853, 43855), (3043, 26705), (3815, 21301), (4165, 19511), (5341, 15215), (6265, 12971), (8771, 9265)]