64678940

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{28619}}^1$

素因数の和:28741

約数の個数: 24

約数和(自身を含む): 137032560

約数和(自身を除く): 72353620

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 28619, 57238, 114476, 143095, 286190, 572380, 3233947, 6467894, 12935788, 16169735, 32339470, 64678940]

約数ペア:

[(1, 64678940), (2, 32339470), (4, 16169735), (5, 12935788), (10, 6467894), (20, 3233947), (113, 572380), (226, 286190), (452, 143095), (565, 114476), (1130, 57238), (2260, 28619)]