77893480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{278191}}^1$

素因数の和:278209

約数の個数: 32

約数和(自身を含む): 200298240

約数和(自身を除く): 122404760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 278191, 556382, 1112764, 1390955, 1947337, 2225528, 2781910, 3894674, 5563820, 7789348, 9736685, 11127640, 15578696, 19473370, 38946740, 77893480]

約数ペア:

[(1, 77893480), (2, 38946740), (4, 19473370), (5, 15578696), (7, 11127640), (8, 9736685), (10, 7789348), (14, 5563820), (20, 3894674), (28, 2781910), (35, 2225528), (40, 1947337), (56, 1390955), (70, 1112764), (140, 556382), (280, 278191)]