20189221280

素因数分解:

$2^5\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1249333}}^1$

素因数の和:1249449

約数の個数: 48

約数和(自身を含む): 48169321704

約数和(自身を除く): 27980100424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 101, 160, 202, 404, 505, 808, 1010, 1616, 2020, 3232, 4040, 8080, 16160, 1249333, 2498666, 4997332, 6246665, 9994664, 12493330, 19989328, 24986660, 39978656, 49973320, 99946640, 126182633, 199893280, 252365266, 504730532, 630913165, 1009461064, 1261826330, 2018922128, 2523652660, 4037844256, 5047305320, 10094610640, 20189221280]

約数ペア:

[(1, 20189221280), (2, 10094610640), (4, 5047305320), (5, 4037844256), (8, 2523652660), (10, 2018922128), (16, 1261826330), (20, 1009461064), (32, 630913165), (40, 504730532), (80, 252365266), (101, 199893280), (160, 126182633), (202, 99946640), (404, 49973320), (505, 39978656), (808, 24986660), (1010, 19989328), (1616, 12493330), (2020, 9994664), (3232, 6246665), (4040, 4997332), (8080, 2498666), (16160, 1249333)]