20323305

素因数分解:

$3^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 37477440

約数和(自身を除く): 17154135

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 81, 129, 135, 215, 243, 387, 389, 405, 645, 1161, 1167, 1215, 1935, 1945, 3483, 3501, 5805, 5835, 10449, 10503, 16727, 17415, 17505, 31509, 50181, 52245, 52515, 83635, 94527, 150543, 157545, 250905, 451629, 472635, 752715, 1354887, 2258145, 4064661, 6774435, 20323305]

約数ペア:

[(1, 20323305), (3, 6774435), (5, 4064661), (9, 2258145), (15, 1354887), (27, 752715), (43, 472635), (45, 451629), (81, 250905), (129, 157545), (135, 150543), (215, 94527), (243, 83635), (387, 52515), (389, 52245), (405, 50181), (645, 31509), (1161, 17505), (1167, 17415), (1215, 16727), (1935, 10503), (1945, 10449), (3483, 5835), (3501, 5805)]