20084904585

素因数分解:

$3^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{390491}}^1$

素因数の和:390635

約数の個数: 40

約数和(自身を含む): 36287640576

約数和(自身を除く): 16202735991

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 127, 135, 381, 405, 635, 1143, 1905, 3429, 5715, 10287, 17145, 51435, 390491, 1171473, 1952455, 3514419, 5857365, 10543257, 17572095, 31629771, 49592357, 52716285, 148777071, 158148855, 247961785, 446331213, 743885355, 1338993639, 2231656065, 4016980917, 6694968195, 20084904585]

約数ペア:

[(1, 20084904585), (3, 6694968195), (5, 4016980917), (9, 2231656065), (15, 1338993639), (27, 743885355), (45, 446331213), (81, 247961785), (127, 158148855), (135, 148777071), (381, 52716285), (405, 49592357), (635, 31629771), (1143, 17572095), (1905, 10543257), (3429, 5857365), (5715, 3514419), (10287, 1952455), (17145, 1171473), (51435, 390491)]