20201895

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{1087}}^1$

素因数の和:1164

約数の個数: 48

約数和(自身を含む): 40734720

約数和(自身を除く): 20532825

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 59, 63, 105, 177, 295, 315, 413, 531, 885, 1087, 1239, 2065, 2655, 3261, 3717, 5435, 6195, 7609, 9783, 16305, 18585, 22827, 38045, 48915, 64133, 68481, 114135, 192399, 320665, 342405, 448931, 577197, 961995, 1346793, 2244655, 2885985, 4040379, 6733965, 20201895]

約数ペア:

[(1, 20201895), (3, 6733965), (5, 4040379), (7, 2885985), (9, 2244655), (15, 1346793), (21, 961995), (35, 577197), (45, 448931), (59, 342405), (63, 320665), (105, 192399), (177, 114135), (295, 68481), (315, 64133), (413, 48915), (531, 38045), (885, 22827), (1087, 18585), (1239, 16305), (2065, 9783), (2655, 7609), (3261, 6195), (3717, 5435)]