64460890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{1249}}^1$

素因数の和:1666

約数の個数: 32

約数和(自身を含む): 125370000

約数和(自身を除く): 60909110

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 397, 794, 1249, 1985, 2498, 3970, 5161, 6245, 10322, 12490, 16237, 25805, 32474, 51610, 81185, 162370, 495853, 991706, 2479265, 4958530, 6446089, 12892178, 32230445, 64460890]

約数ペア:

[(1, 64460890), (2, 32230445), (5, 12892178), (10, 6446089), (13, 4958530), (26, 2479265), (65, 991706), (130, 495853), (397, 162370), (794, 81185), (1249, 51610), (1985, 32474), (2498, 25805), (3970, 16237), (5161, 12490), (6245, 10322)]