15717320

素因数分解:

$2^3\times 5^1\times {\mathrm{613}}^1\times {\mathrm{641}}^1$

素因数の和:1265

約数の個数: 32

約数和(自身を含む): 35476920

約数和(自身を除く): 19759600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 613, 641, 1226, 1282, 2452, 2564, 3065, 3205, 4904, 5128, 6130, 6410, 12260, 12820, 24520, 25640, 392933, 785866, 1571732, 1964665, 3143464, 3929330, 7858660, 15717320]

約数ペア:

[(1, 15717320), (2, 7858660), (4, 3929330), (5, 3143464), (8, 1964665), (10, 1571732), (20, 785866), (40, 392933), (613, 25640), (641, 24520), (1226, 12820), (1282, 12260), (2452, 6410), (2564, 6130), (3065, 5128), (3205, 4904)]