81277275

素因数分解:

$3^1\times 5^2\times {\mathrm{197}}^1\times {\mathrm{5501}}^1$

素因数の和:5711

約数の個数: 24

約数和(自身を含む): 135085104

約数和(自身を除く): 53807829

約数列:

[1, 3, 5, 15, 25, 75, 197, 591, 985, 2955, 4925, 5501, 14775, 16503, 27505, 82515, 137525, 412575, 1083697, 3251091, 5418485, 16255455, 27092425, 81277275]

約数ペア:

[(1, 81277275), (3, 27092425), (5, 16255455), (15, 5418485), (25, 3251091), (75, 1083697), (197, 412575), (591, 137525), (985, 82515), (2955, 27505), (4925, 16503), (5501, 14775)]