64643175

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{9907}}^1$

素因数の和:9952

約数の個数: 36

約数和(自身を含む): 119787720

約数和(自身を除く): 55144545

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 75, 87, 145, 225, 261, 435, 725, 1305, 2175, 6525, 9907, 29721, 49535, 89163, 148605, 247675, 287303, 445815, 743025, 861909, 1436515, 2229075, 2585727, 4309545, 7182575, 12928635, 21547725, 64643175]

約数ペア:

[(1, 64643175), (3, 21547725), (5, 12928635), (9, 7182575), (15, 4309545), (25, 2585727), (29, 2229075), (45, 1436515), (75, 861909), (87, 743025), (145, 445815), (225, 287303), (261, 247675), (435, 148605), (725, 89163), (1305, 49535), (2175, 29721), (6525, 9907)]