385123760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{687721}}^1$

素因数の和:687741

約数の個数: 40

約数和(自身を含む): 1023330336

約数和(自身を除く): 638206576

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 687721, 1375442, 2750884, 3438605, 4814047, 5501768, 6877210, 9628094, 11003536, 13754420, 19256188, 24070235, 27508840, 38512376, 48140470, 55017680, 77024752, 96280940, 192561880, 385123760]

約数ペア:

[(1, 385123760), (2, 192561880), (4, 96280940), (5, 77024752), (7, 55017680), (8, 48140470), (10, 38512376), (14, 27508840), (16, 24070235), (20, 19256188), (28, 13754420), (35, 11003536), (40, 9628094), (56, 6877210), (70, 5501768), (80, 4814047), (112, 3438605), (140, 2750884), (280, 1375442), (560, 687721)]