80647575

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1471}}^1$

素因数の和:1544

約数の個数: 48

約数和(自身を含む): 144562176

約数和(自身を除く): 63914601

約数列:

[1, 3, 5, 15, 17, 25, 43, 51, 75, 85, 129, 215, 255, 425, 645, 731, 1075, 1275, 1471, 2193, 3225, 3655, 4413, 7355, 10965, 18275, 22065, 25007, 36775, 54825, 63253, 75021, 110325, 125035, 189759, 316265, 375105, 625175, 948795, 1075301, 1581325, 1875525, 3225903, 4743975, 5376505, 16129515, 26882525, 80647575]

約数ペア:

[(1, 80647575), (3, 26882525), (5, 16129515), (15, 5376505), (17, 4743975), (25, 3225903), (43, 1875525), (51, 1581325), (75, 1075301), (85, 948795), (129, 625175), (215, 375105), (255, 316265), (425, 189759), (645, 125035), (731, 110325), (1075, 75021), (1275, 63253), (1471, 54825), (2193, 36775), (3225, 25007), (3655, 22065), (4413, 18275), (7355, 10965)]