20153481215

素因数分解:

$5^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{1777}}^1$

素因数の和:2209

約数の個数: 64

約数和(自身を含む): 29955744000

約数和(自身を除く): 9802262785

約数列:

[1, 5, 7, 17, 35, 49, 85, 119, 245, 343, 389, 595, 833, 1715, 1777, 1945, 2723, 4165, 5831, 6613, 8885, 12439, 13615, 19061, 29155, 30209, 33065, 46291, 62195, 87073, 95305, 133427, 151045, 211463, 231455, 324037, 435365, 609511, 667135, 691253, 1057315, 1480241, 1620185, 2268259, 3047555, 3456265, 4838771, 7401205, 10361687, 11341295, 11751301, 24193855, 33871397, 51808435, 58756505, 82259107, 169356985, 237099779, 411295535, 575813749, 1185498895, 2879068745, 4030696243, 20153481215]

約数ペア:

[(1, 20153481215), (5, 4030696243), (7, 2879068745), (17, 1185498895), (35, 575813749), (49, 411295535), (85, 237099779), (119, 169356985), (245, 82259107), (343, 58756505), (389, 51808435), (595, 33871397), (833, 24193855), (1715, 11751301), (1777, 11341295), (1945, 10361687), (2723, 7401205), (4165, 4838771), (5831, 3456265), (6613, 3047555), (8885, 2268259), (12439, 1620185), (13615, 1480241), (19061, 1057315), (29155, 691253), (30209, 667135), (33065, 609511), (46291, 435365), (62195, 324037), (87073, 231455), (95305, 211463), (133427, 151045)]