20570715

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1433}}^1$

素因数の和:1484

約数の個数: 48

約数和(自身を含む): 40266720

約数和(自身を除く): 19696005

約数列:

[1, 3, 5, 9, 11, 15, 29, 33, 45, 55, 87, 99, 145, 165, 261, 319, 435, 495, 957, 1305, 1433, 1595, 2871, 4299, 4785, 7165, 12897, 14355, 15763, 21495, 41557, 47289, 64485, 78815, 124671, 141867, 207785, 236445, 374013, 457127, 623355, 709335, 1371381, 1870065, 2285635, 4114143, 6856905, 20570715]

約数ペア:

[(1, 20570715), (3, 6856905), (5, 4114143), (9, 2285635), (11, 1870065), (15, 1371381), (29, 709335), (33, 623355), (45, 457127), (55, 374013), (87, 236445), (99, 207785), (145, 141867), (165, 124671), (261, 78815), (319, 64485), (435, 47289), (495, 41557), (957, 21495), (1305, 15763), (1433, 14355), (1595, 12897), (2871, 7165), (4299, 4785)]