64488580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{248033}}^1$

素因数の和:248055

約数の個数: 24

約数和(自身を含む): 145843992

約数和(自身を除く): 81355412

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 248033, 496066, 992132, 1240165, 2480330, 3224429, 4960660, 6448858, 12897716, 16122145, 32244290, 64488580]

約数ペア:

[(1, 64488580), (2, 32244290), (4, 16122145), (5, 12897716), (10, 6448858), (13, 4960660), (20, 3224429), (26, 2480330), (52, 1240165), (65, 992132), (130, 496066), (260, 248033)]