28075815

素因数分解:

$3^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{383}}^1$

素因数の和:581

約数の個数: 40

約数和(自身を含む): 50738688

約数和(自身を除く): 22662873

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 181, 383, 405, 543, 905, 1149, 1629, 1915, 2715, 3447, 4887, 5745, 8145, 10341, 14661, 17235, 24435, 31023, 51705, 69323, 73305, 155115, 207969, 346615, 623907, 1039845, 1871721, 3119535, 5615163, 9358605, 28075815]

約数ペア:

[(1, 28075815), (3, 9358605), (5, 5615163), (9, 3119535), (15, 1871721), (27, 1039845), (45, 623907), (81, 346615), (135, 207969), (181, 155115), (383, 73305), (405, 69323), (543, 51705), (905, 31023), (1149, 24435), (1629, 17235), (1915, 14661), (2715, 10341), (3447, 8145), (4887, 5745)]