661480816

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{617053}}^1$

素因数の和:617128

約数の個数: 20

約数和(自身を含む): 1300749832

約数和(自身を除く): 639269016

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 617053, 1234106, 2468212, 4936424, 9872848, 41342551, 82685102, 165370204, 330740408, 661480816]

約数ペア:

[(1, 661480816), (2, 330740408), (4, 165370204), (8, 82685102), (16, 41342551), (67, 9872848), (134, 4936424), (268, 2468212), (536, 1234106), (1072, 617053)]