2105662270

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{257731}}^1$

素因数の和:257800

約数の個数: 32

約数和(自身を含む): 4082474880

約数和(自身を除く): 1976812610

約数列:

[1, 2, 5, 10, 19, 38, 43, 86, 95, 190, 215, 430, 817, 1634, 4085, 8170, 257731, 515462, 1288655, 2577310, 4896889, 9793778, 11082433, 22164866, 24484445, 48968890, 55412165, 110824330, 210566227, 421132454, 1052831135, 2105662270]

約数ペア:

[(1, 2105662270), (2, 1052831135), (5, 421132454), (10, 210566227), (19, 110824330), (38, 55412165), (43, 48968890), (86, 24484445), (95, 22164866), (190, 11082433), (215, 9793778), (430, 4896889), (817, 2577310), (1634, 1288655), (4085, 515462), (8170, 257731)]