20863730

素因数分解:

$2^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:398

約数の個数: 32

約数和(自身を含む): 38462256

約数和(自身を除く): 17598526

約数列:

[1, 2, 5, 10, 97, 137, 157, 194, 274, 314, 485, 685, 785, 970, 1370, 1570, 13289, 15229, 21509, 26578, 30458, 43018, 66445, 76145, 107545, 132890, 152290, 215090, 2086373, 4172746, 10431865, 20863730]

約数ペア:

[(1, 20863730), (2, 10431865), (5, 4172746), (10, 2086373), (97, 215090), (137, 152290), (157, 132890), (194, 107545), (274, 76145), (314, 66445), (485, 43018), (685, 30458), (785, 26578), (970, 21509), (1370, 15229), (1570, 13289)]