20294235

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{307}}^1$

素因数の和:444

約数の個数: 48

約数和(自身を含む): 38342304

約数和(自身を除く): 18048069

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 113, 117, 195, 307, 339, 565, 585, 921, 1017, 1469, 1535, 1695, 2763, 3991, 4407, 4605, 5085, 7345, 11973, 13221, 13815, 19955, 22035, 34691, 35919, 59865, 66105, 104073, 173455, 179595, 312219, 450983, 520365, 1352949, 1561095, 2254915, 4058847, 6764745, 20294235]

約数ペア:

[(1, 20294235), (3, 6764745), (5, 4058847), (9, 2254915), (13, 1561095), (15, 1352949), (39, 520365), (45, 450983), (65, 312219), (113, 179595), (117, 173455), (195, 104073), (307, 66105), (339, 59865), (565, 35919), (585, 34691), (921, 22035), (1017, 19955), (1469, 13815), (1535, 13221), (1695, 11973), (2763, 7345), (3991, 5085), (4407, 4605)]