664371645

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{53171}}^1$

素因数の和:53210

約数の個数: 48

約数和(自身を含む): 1309307328

約数和(自身を除く): 644935683

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 49, 51, 85, 105, 119, 147, 245, 255, 357, 595, 735, 833, 1785, 2499, 4165, 12495, 53171, 159513, 265855, 372197, 797565, 903907, 1116591, 1860985, 2605379, 2711721, 4519535, 5582955, 6327349, 7816137, 13026895, 13558605, 18982047, 31636745, 39080685, 44291443, 94910235, 132874329, 221457215, 664371645]

約数ペア:

[(1, 664371645), (3, 221457215), (5, 132874329), (7, 94910235), (15, 44291443), (17, 39080685), (21, 31636745), (35, 18982047), (49, 13558605), (51, 13026895), (85, 7816137), (105, 6327349), (119, 5582955), (147, 4519535), (245, 2711721), (255, 2605379), (357, 1860985), (595, 1116591), (735, 903907), (833, 797565), (1785, 372197), (2499, 265855), (4165, 159513), (12495, 53171)]