81340515

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{44087}}^1$

素因数の和:44139

約数の個数: 24

約数和(自身を含む): 144432288

約数和(自身を除く): 63091773

約数列:

[1, 3, 5, 9, 15, 41, 45, 123, 205, 369, 615, 1845, 44087, 132261, 220435, 396783, 661305, 1807567, 1983915, 5422701, 9037835, 16268103, 27113505, 81340515]

約数ペア:

[(1, 81340515), (3, 27113505), (5, 16268103), (9, 9037835), (15, 5422701), (41, 1983915), (45, 1807567), (123, 661305), (205, 396783), (369, 220435), (615, 132261), (1845, 44087)]