20595260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{937}}^1$

素因数の和:1110

約数の個数: 48

約数和(自身を含む): 49796544

約数和(自身を除く): 29201284

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 628, 785, 937, 1099, 1570, 1874, 2198, 3140, 3748, 4396, 4685, 5495, 6559, 9370, 10990, 13118, 18740, 21980, 26236, 32795, 65590, 131180, 147109, 294218, 588436, 735545, 1029763, 1471090, 2059526, 2942180, 4119052, 5148815, 10297630, 20595260]

約数ペア:

[(1, 20595260), (2, 10297630), (4, 5148815), (5, 4119052), (7, 2942180), (10, 2059526), (14, 1471090), (20, 1029763), (28, 735545), (35, 588436), (70, 294218), (140, 147109), (157, 131180), (314, 65590), (628, 32795), (785, 26236), (937, 21980), (1099, 18740), (1570, 13118), (1874, 10990), (2198, 9370), (3140, 6559), (3748, 5495), (4396, 4685)]