19792900

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{4603}}^1$

素因数の和:4660

約数の個数: 36

約数和(自身を含む): 43958992

約数和(自身を除く): 24166092

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 215, 430, 860, 1075, 2150, 4300, 4603, 9206, 18412, 23015, 46030, 92060, 115075, 197929, 230150, 395858, 460300, 791716, 989645, 1979290, 3958580, 4948225, 9896450, 19792900]

約数ペア:

[(1, 19792900), (2, 9896450), (4, 4948225), (5, 3958580), (10, 1979290), (20, 989645), (25, 791716), (43, 460300), (50, 395858), (86, 230150), (100, 197929), (172, 115075), (215, 92060), (430, 46030), (860, 23015), (1075, 18412), (2150, 9206), (4300, 4603)]