20138646538

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{431}}^1\times {\mathrm{2221}}^1$

素因数の和:2878

約数の個数: 32

約数和(自身を含む): 30939625728

約数和(自身を除く): 10800979190

約数列:

[1, 2, 67, 134, 157, 314, 431, 862, 2221, 4442, 10519, 21038, 28877, 57754, 67667, 135334, 148807, 297614, 348697, 697394, 957251, 1914502, 4533689, 9067378, 23362699, 46725398, 64135817, 128271634, 150288407, 300576814, 10069323269, 20138646538]

約数ペア:

[(1, 20138646538), (2, 10069323269), (67, 300576814), (134, 150288407), (157, 128271634), (314, 64135817), (431, 46725398), (862, 23362699), (2221, 9067378), (4442, 4533689), (10519, 1914502), (21038, 957251), (28877, 697394), (57754, 348697), (67667, 297614), (135334, 148807)]