20608120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{39631}}^1$

素因数の和:39655

約数の個数: 32

約数和(自身を含む): 49936320

約数和(自身を除く): 29328200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 39631, 79262, 158524, 198155, 317048, 396310, 515203, 792620, 1030406, 1585240, 2060812, 2576015, 4121624, 5152030, 10304060, 20608120]

約数ペア:

[(1, 20608120), (2, 10304060), (4, 5152030), (5, 4121624), (8, 2576015), (10, 2060812), (13, 1585240), (20, 1030406), (26, 792620), (40, 515203), (52, 396310), (65, 317048), (104, 198155), (130, 158524), (260, 79262), (520, 39631)]