20415050

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{13171}}^1$

素因数の和:13214

約数の個数: 24

約数和(自身を含む): 39199872

約数和(自身を除く): 18784822

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 155, 310, 775, 1550, 13171, 26342, 65855, 131710, 329275, 408301, 658550, 816602, 2041505, 4083010, 10207525, 20415050]

約数ペア:

[(1, 20415050), (2, 10207525), (5, 4083010), (10, 2041505), (25, 816602), (31, 658550), (50, 408301), (62, 329275), (155, 131710), (310, 65855), (775, 26342), (1550, 13171)]