72128525

素因数分解:

$5^2\times 7^1\times {\mathrm{641}}^1\times {\mathrm{643}}^1$

素因数の和:1301

約数の個数: 24

約数和(自身を含む): 102535104

約数和(自身を除く): 30406579

約数列:

[1, 5, 7, 25, 35, 175, 641, 643, 3205, 3215, 4487, 4501, 16025, 16075, 22435, 22505, 112175, 112525, 412163, 2060815, 2885141, 10304075, 14425705, 72128525]

約数ペア:

[(1, 72128525), (5, 14425705), (7, 10304075), (25, 2885141), (35, 2060815), (175, 412163), (641, 112525), (643, 112175), (3205, 22505), (3215, 22435), (4487, 16075), (4501, 16025)]