15881320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4363}}^1$

素因数の和:4394

約数の個数: 64

約数和(自身を含む): 43989120

約数和(自身を除く): 28107800

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 4363, 8726, 17452, 21815, 30541, 34904, 43630, 56719, 61082, 87260, 113438, 122164, 152705, 174520, 226876, 244328, 283595, 305410, 397033, 453752, 567190, 610820, 794066, 1134380, 1221640, 1588132, 1985165, 2268760, 3176264, 3970330, 7940660, 15881320]

約数ペア:

[(1, 15881320), (2, 7940660), (4, 3970330), (5, 3176264), (7, 2268760), (8, 1985165), (10, 1588132), (13, 1221640), (14, 1134380), (20, 794066), (26, 610820), (28, 567190), (35, 453752), (40, 397033), (52, 305410), (56, 283595), (65, 244328), (70, 226876), (91, 174520), (104, 152705), (130, 122164), (140, 113438), (182, 87260), (260, 61082), (280, 56719), (364, 43630), (455, 34904), (520, 30541), (728, 21815), (910, 17452), (1820, 8726), (3640, 4363)]