15321320

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{7817}}^1$

素因数の和:7842

約数の個数: 48

約数和(自身を含む): 40106340

約数和(自身を除く): 24785020

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 7817, 15634, 31268, 39085, 54719, 62536, 78170, 109438, 156340, 218876, 273595, 312680, 383033, 437752, 547190, 766066, 1094380, 1532132, 1915165, 2188760, 3064264, 3830330, 7660660, 15321320]

約数ペア:

[(1, 15321320), (2, 7660660), (4, 3830330), (5, 3064264), (7, 2188760), (8, 1915165), (10, 1532132), (14, 1094380), (20, 766066), (28, 547190), (35, 437752), (40, 383033), (49, 312680), (56, 273595), (70, 218876), (98, 156340), (140, 109438), (196, 78170), (245, 62536), (280, 54719), (392, 39085), (490, 31268), (980, 15634), (1960, 7817)]