20217367495

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{797}}^1\times {\mathrm{12589}}^1$

素因数の和:13435

約数の個数: 32

約数和(自身を含む): 27005852160

約数和(自身を除く): 6788484665

約数列:

[1, 5, 13, 31, 65, 155, 403, 797, 2015, 3985, 10361, 12589, 24707, 51805, 62945, 123535, 163657, 321191, 390259, 818285, 1605955, 1951295, 5073367, 10033433, 25366835, 50167165, 130434629, 311036423, 652173145, 1555182115, 4043473499, 20217367495]

約数ペア:

[(1, 20217367495), (5, 4043473499), (13, 1555182115), (31, 652173145), (65, 311036423), (155, 130434629), (403, 50167165), (797, 25366835), (2015, 10033433), (3985, 5073367), (10361, 1951295), (12589, 1605955), (24707, 818285), (51805, 390259), (62945, 321191), (123535, 163657)]