70870780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{1721}}^1$

素因数の和:1830

約数の個数: 48

約数和(自身を含む): 156219840

約数和(自身を除く): 85349060

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 71, 116, 142, 145, 284, 290, 355, 580, 710, 1420, 1721, 2059, 3442, 4118, 6884, 8236, 8605, 10295, 17210, 20590, 34420, 41180, 49909, 99818, 122191, 199636, 244382, 249545, 488764, 499090, 610955, 998180, 1221910, 2443820, 3543539, 7087078, 14174156, 17717695, 35435390, 70870780]

約数ペア:

[(1, 70870780), (2, 35435390), (4, 17717695), (5, 14174156), (10, 7087078), (20, 3543539), (29, 2443820), (58, 1221910), (71, 998180), (116, 610955), (142, 499090), (145, 488764), (284, 249545), (290, 244382), (355, 199636), (580, 122191), (710, 99818), (1420, 49909), (1721, 41180), (2059, 34420), (3442, 20590), (4118, 17210), (6884, 10295), (8236, 8605)]