1809447320

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{447883}}^1$

素因数の和:447995

約数の個数: 32

約数和(自身を含む): 4111575120

約数和(自身を除く): 2302127800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 447883, 895766, 1791532, 2239415, 3583064, 4478830, 8957660, 17915320, 45236183, 90472366, 180944732, 226180915, 361889464, 452361830, 904723660, 1809447320]

約数ペア:

[(1, 1809447320), (2, 904723660), (4, 452361830), (5, 361889464), (8, 226180915), (10, 180944732), (20, 90472366), (40, 45236183), (101, 17915320), (202, 8957660), (404, 4478830), (505, 3583064), (808, 2239415), (1010, 1791532), (2020, 895766), (4040, 447883)]