25726720

素因数分解:

$2^8\times 5^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1$

素因数の和:321

約数の個数: 72

約数和(自身を含む): 62546400

約数和(自身を除く): 36819680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 128, 160, 199, 202, 256, 320, 398, 404, 505, 640, 796, 808, 995, 1010, 1280, 1592, 1616, 1990, 2020, 3184, 3232, 3980, 4040, 6368, 6464, 7960, 8080, 12736, 12928, 15920, 16160, 20099, 25472, 25856, 31840, 32320, 40198, 50944, 63680, 64640, 80396, 100495, 127360, 129280, 160792, 200990, 254720, 321584, 401980, 643168, 803960, 1286336, 1607920, 2572672, 3215840, 5145344, 6431680, 12863360, 25726720]

約数ペア:

[(1, 25726720), (2, 12863360), (4, 6431680), (5, 5145344), (8, 3215840), (10, 2572672), (16, 1607920), (20, 1286336), (32, 803960), (40, 643168), (64, 401980), (80, 321584), (101, 254720), (128, 200990), (160, 160792), (199, 129280), (202, 127360), (256, 100495), (320, 80396), (398, 64640), (404, 63680), (505, 50944), (640, 40198), (796, 32320), (808, 31840), (995, 25856), (1010, 25472), (1280, 20099), (1592, 16160), (1616, 15920), (1990, 12928), (2020, 12736), (3184, 8080), (3232, 7960), (3980, 6464), (4040, 6368)]