20809561955

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{853}}^1\times {\mathrm{53617}}^1$

素因数の和:54495

約数の個数: 32

約数和(自身を含む): 30770726784

約数和(自身を除く): 9961164829

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 853, 4265, 5971, 11089, 29855, 53617, 55445, 77623, 268085, 375319, 388115, 697021, 1876595, 3485105, 4879147, 24395735, 45735301, 228676505, 320147107, 594558913, 1600735535, 2972794565, 4161912391, 20809561955]

約数ペア:

[(1, 20809561955), (5, 4161912391), (7, 2972794565), (13, 1600735535), (35, 594558913), (65, 320147107), (91, 228676505), (455, 45735301), (853, 24395735), (4265, 4879147), (5971, 3485105), (11089, 1876595), (29855, 697021), (53617, 388115), (55445, 375319), (77623, 268085)]