40720688

素因数分解:

$2^4\times {\mathrm{197}}^1\times {\mathrm{12919}}^1$

素因数の和:13124

約数の個数: 20

約数和(自身を含む): 79302960

約数和(自身を除く): 38582272

約数列:

[1, 2, 4, 8, 16, 197, 394, 788, 1576, 3152, 12919, 25838, 51676, 103352, 206704, 2545043, 5090086, 10180172, 20360344, 40720688]

約数ペア:

[(1, 40720688), (2, 20360344), (4, 10180172), (8, 5090086), (16, 2545043), (197, 206704), (394, 103352), (788, 51676), (1576, 25838), (3152, 12919)]