81028360

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{41341}}^1$

素因数の和:41366

約数の個数: 48

約数和(自身を含む): 212084460

約数和(自身を除く): 131056100

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 41341, 82682, 165364, 206705, 289387, 330728, 413410, 578774, 826820, 1157548, 1446935, 1653640, 2025709, 2315096, 2893870, 4051418, 5787740, 8102836, 10128545, 11575480, 16205672, 20257090, 40514180, 81028360]

約数ペア:

[(1, 81028360), (2, 40514180), (4, 20257090), (5, 16205672), (7, 11575480), (8, 10128545), (10, 8102836), (14, 5787740), (20, 4051418), (28, 2893870), (35, 2315096), (40, 2025709), (49, 1653640), (56, 1446935), (70, 1157548), (98, 826820), (140, 578774), (196, 413410), (245, 330728), (280, 289387), (392, 206705), (490, 165364), (980, 82682), (1960, 41341)]