20341880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{39119}}^1$

素因数の和:39143

約数の個数: 32

約数和(自身を含む): 49291200

約数和(自身を除く): 28949320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 39119, 78238, 156476, 195595, 312952, 391190, 508547, 782380, 1017094, 1564760, 2034188, 2542735, 4068376, 5085470, 10170940, 20341880]

約数ペア:

[(1, 20341880), (2, 10170940), (4, 5085470), (5, 4068376), (8, 2542735), (10, 2034188), (13, 1564760), (20, 1017094), (26, 782380), (40, 508547), (52, 391190), (65, 312952), (104, 195595), (130, 156476), (260, 78238), (520, 39119)]