1779109520

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{517183}}^1$

素因数の和:517239

約数の個数: 40

約数和(自身を含む): 4232633856

約数和(自身を除く): 2453524336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 517183, 1034366, 2068732, 2585915, 4137464, 5171830, 8274928, 10343660, 20687320, 22238869, 41374640, 44477738, 88955476, 111194345, 177910952, 222388690, 355821904, 444777380, 889554760, 1779109520]

約数ペア:

[(1, 1779109520), (2, 889554760), (4, 444777380), (5, 355821904), (8, 222388690), (10, 177910952), (16, 111194345), (20, 88955476), (40, 44477738), (43, 41374640), (80, 22238869), (86, 20687320), (172, 10343660), (215, 8274928), (344, 5171830), (430, 4137464), (688, 2585915), (860, 2068732), (1720, 1034366), (3440, 517183)]