19005575440

素因数分解:

$2^4\times 5^1\times {\mathrm{3943}}^1\times {\mathrm{60251}}^1$

素因数の和:64207

約数の個数: 40

約数和(自身を含む): 44199903168

約数和(自身を除く): 25194327728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3943, 7886, 15772, 19715, 31544, 39430, 60251, 63088, 78860, 120502, 157720, 241004, 301255, 315440, 482008, 602510, 964016, 1205020, 2410040, 4820080, 237569693, 475139386, 950278772, 1187848465, 1900557544, 2375696930, 3801115088, 4751393860, 9502787720, 19005575440]

約数ペア:

[(1, 19005575440), (2, 9502787720), (4, 4751393860), (5, 3801115088), (8, 2375696930), (10, 1900557544), (16, 1187848465), (20, 950278772), (40, 475139386), (80, 237569693), (3943, 4820080), (7886, 2410040), (15772, 1205020), (19715, 964016), (31544, 602510), (39430, 482008), (60251, 315440), (63088, 301255), (78860, 241004), (120502, 157720)]