128307320

素因数分解:

$2^3\times 5^1\times {\mathrm{457}}^1\times {\mathrm{7019}}^1$

素因数の和:7487

約数の個数: 32

約数和(自身を含む): 289364400

約数和(自身を除く): 161057080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 457, 914, 1828, 2285, 3656, 4570, 7019, 9140, 14038, 18280, 28076, 35095, 56152, 70190, 140380, 280760, 3207683, 6415366, 12830732, 16038415, 25661464, 32076830, 64153660, 128307320]

約数ペア:

[(1, 128307320), (2, 64153660), (4, 32076830), (5, 25661464), (8, 16038415), (10, 12830732), (20, 6415366), (40, 3207683), (457, 280760), (914, 140380), (1828, 70190), (2285, 56152), (3656, 35095), (4570, 28076), (7019, 18280), (9140, 14038)]