638540891045

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{601}}^1\times {\mathrm{12499577}}^1$

素因数の和:12500200

約数の個数: 16

約数和(自身を含む): 812672563248

約数和(自身を除く): 174131672203

約数列:

[1, 5, 17, 85, 601, 3005, 10217, 51085, 12499577, 62497885, 212492809, 1062464045, 7512245777, 37561228885, 127708178209, 638540891045]

約数ペア:

[(1, 638540891045), (5, 127708178209), (17, 37561228885), (85, 7512245777), (601, 1062464045), (3005, 212492809), (10217, 62497885), (51085, 12499577)]