20661348575

素因数分解:

$5^2\times 7^2\times {\mathrm{919}}^1\times {\mathrm{18353}}^1$

素因数の和:19296

約数の個数: 36

約数和(自身を含む): 29836996560

約数和(自身を除く): 9175647985

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 919, 1225, 4595, 6433, 18353, 22975, 32165, 45031, 91765, 128471, 160825, 225155, 458825, 642355, 899297, 1125775, 3211775, 4496485, 16866407, 22482425, 84332035, 118064849, 421660175, 590324245, 826453943, 2951621225, 4132269715, 20661348575]

約数ペア:

[(1, 20661348575), (5, 4132269715), (7, 2951621225), (25, 826453943), (35, 590324245), (49, 421660175), (175, 118064849), (245, 84332035), (919, 22482425), (1225, 16866407), (4595, 4496485), (6433, 3211775), (18353, 1125775), (22975, 899297), (32165, 642355), (45031, 458825), (91765, 225155), (128471, 160825)]