19262720

素因数分解:

$2^8\times 5^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:271

約数の個数: 72

約数和(自身を含む): 46909800

約数和(自身を除く): 27647080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 128, 149, 160, 202, 256, 298, 320, 404, 505, 596, 640, 745, 808, 1010, 1192, 1280, 1490, 1616, 2020, 2384, 2980, 3232, 4040, 4768, 5960, 6464, 8080, 9536, 11920, 12928, 15049, 16160, 19072, 23840, 25856, 30098, 32320, 38144, 47680, 60196, 64640, 75245, 95360, 120392, 129280, 150490, 190720, 240784, 300980, 481568, 601960, 963136, 1203920, 1926272, 2407840, 3852544, 4815680, 9631360, 19262720]

約数ペア:

[(1, 19262720), (2, 9631360), (4, 4815680), (5, 3852544), (8, 2407840), (10, 1926272), (16, 1203920), (20, 963136), (32, 601960), (40, 481568), (64, 300980), (80, 240784), (101, 190720), (128, 150490), (149, 129280), (160, 120392), (202, 95360), (256, 75245), (298, 64640), (320, 60196), (404, 47680), (505, 38144), (596, 32320), (640, 30098), (745, 25856), (808, 23840), (1010, 19072), (1192, 16160), (1280, 15049), (1490, 12928), (1616, 11920), (2020, 9536), (2384, 8080), (2980, 6464), (3232, 5960), (4040, 4768)]