15687440

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1249}}^1$

素因数の和:1419

約数の個数: 40

約数和(自身を含む): 36735000

約数和(自身を除く): 21047560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1249, 1256, 1570, 2498, 2512, 3140, 4996, 6245, 6280, 9992, 12490, 12560, 19984, 24980, 49960, 99920, 196093, 392186, 784372, 980465, 1568744, 1960930, 3137488, 3921860, 7843720, 15687440]

約数ペア:

[(1, 15687440), (2, 7843720), (4, 3921860), (5, 3137488), (8, 1960930), (10, 1568744), (16, 980465), (20, 784372), (40, 392186), (80, 196093), (157, 99920), (314, 49960), (628, 24980), (785, 19984), (1249, 12560), (1256, 12490), (1570, 9992), (2498, 6280), (2512, 6245), (3140, 4996)]