18495440

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{4919}}^1$

素因数の和:4979

約数の個数: 40

約数和(自身を含む): 43925760

約数和(自身を除く): 25430320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 4919, 9838, 19676, 24595, 39352, 49190, 78704, 98380, 196760, 231193, 393520, 462386, 924772, 1155965, 1849544, 2311930, 3699088, 4623860, 9247720, 18495440]

約数ペア:

[(1, 18495440), (2, 9247720), (4, 4623860), (5, 3699088), (8, 2311930), (10, 1849544), (16, 1155965), (20, 924772), (40, 462386), (47, 393520), (80, 231193), (94, 196760), (188, 98380), (235, 78704), (376, 49190), (470, 39352), (752, 24595), (940, 19676), (1880, 9838), (3760, 4919)]