201456140

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{51131}}^1$

素因数の和:51337

約数の個数: 24

約数和(自身を含む): 425213712

約数和(自身を除く): 223757572

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 51131, 102262, 204524, 255655, 511310, 1022620, 10072807, 20145614, 40291228, 50364035, 100728070, 201456140]

約数ペア:

[(1, 201456140), (2, 100728070), (4, 50364035), (5, 40291228), (10, 20145614), (20, 10072807), (197, 1022620), (394, 511310), (788, 255655), (985, 204524), (1970, 102262), (3940, 51131)]