20203575

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1327}}^1$

素因数の和:1376

約数の個数: 48

約数和(自身を含む): 39521280

約数和(自身を除く): 19317705

約数列:

[1, 3, 5, 7, 15, 21, 25, 29, 35, 75, 87, 105, 145, 175, 203, 435, 525, 609, 725, 1015, 1327, 2175, 3045, 3981, 5075, 6635, 9289, 15225, 19905, 27867, 33175, 38483, 46445, 99525, 115449, 139335, 192415, 232225, 269381, 577245, 696675, 808143, 962075, 1346905, 2886225, 4040715, 6734525, 20203575]

約数ペア:

[(1, 20203575), (3, 6734525), (5, 4040715), (7, 2886225), (15, 1346905), (21, 962075), (25, 808143), (29, 696675), (35, 577245), (75, 269381), (87, 232225), (105, 192415), (145, 139335), (175, 115449), (203, 99525), (435, 46445), (525, 38483), (609, 33175), (725, 27867), (1015, 19905), (1327, 15225), (2175, 9289), (3045, 6635), (3981, 5075)]