20064280

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{193}}^1$

素因数の和:340

約数の個数: 64

約数和(自身を含む): 47770560

約数和(自身を除く): 27706280

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 113, 115, 184, 193, 226, 230, 386, 452, 460, 565, 772, 904, 920, 965, 1130, 1544, 1930, 2260, 2599, 3860, 4439, 4520, 5198, 7720, 8878, 10396, 12995, 17756, 20792, 21809, 22195, 25990, 35512, 43618, 44390, 51980, 87236, 88780, 103960, 109045, 174472, 177560, 218090, 436180, 501607, 872360, 1003214, 2006428, 2508035, 4012856, 5016070, 10032140, 20064280]

約数ペア:

[(1, 20064280), (2, 10032140), (4, 5016070), (5, 4012856), (8, 2508035), (10, 2006428), (20, 1003214), (23, 872360), (40, 501607), (46, 436180), (92, 218090), (113, 177560), (115, 174472), (184, 109045), (193, 103960), (226, 88780), (230, 87236), (386, 51980), (452, 44390), (460, 43618), (565, 35512), (772, 25990), (904, 22195), (920, 21809), (965, 20792), (1130, 17756), (1544, 12995), (1930, 10396), (2260, 8878), (2599, 7720), (3860, 5198), (4439, 4520)]