9780975

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{1499}}^1$

素因数の和:1544

約数の個数: 36

約数和(自身を含む): 18135000

約数和(自身を除く): 8354025

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 75, 87, 145, 225, 261, 435, 725, 1305, 1499, 2175, 4497, 6525, 7495, 13491, 22485, 37475, 43471, 67455, 112425, 130413, 217355, 337275, 391239, 652065, 1086775, 1956195, 3260325, 9780975]

約数ペア:

[(1, 9780975), (3, 3260325), (5, 1956195), (9, 1086775), (15, 652065), (25, 391239), (29, 337275), (45, 217355), (75, 130413), (87, 112425), (145, 67455), (225, 43471), (261, 37475), (435, 22485), (725, 13491), (1305, 7495), (1499, 6525), (2175, 4497)]