199889920

素因数分解:

$2^{10}\times 5^1\times {\mathrm{39041}}^1$

素因数の和:39066

約数の個数: 44

約数和(自身を含む): 479513844

約数和(自身を除く): 279623924

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 39041, 78082, 156164, 195205, 312328, 390410, 624656, 780820, 1249312, 1561640, 2498624, 3123280, 4997248, 6246560, 9994496, 12493120, 19988992, 24986240, 39977984, 49972480, 99944960, 199889920]

約数ペア:

[(1, 199889920), (2, 99944960), (4, 49972480), (5, 39977984), (8, 24986240), (10, 19988992), (16, 12493120), (20, 9994496), (32, 6246560), (40, 4997248), (64, 3123280), (80, 2498624), (128, 1561640), (160, 1249312), (256, 780820), (320, 624656), (512, 390410), (640, 312328), (1024, 195205), (1280, 156164), (2560, 78082), (5120, 39041)]