1199780

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{251}}^1$

素因数の和:499

約数の個数: 24

約数和(自身を含む): 2540160

約数和(自身を除く): 1340380

約数列:

[1, 2, 4, 5, 10, 20, 239, 251, 478, 502, 956, 1004, 1195, 1255, 2390, 2510, 4780, 5020, 59989, 119978, 239956, 299945, 599890, 1199780]

約数ペア:

[(1, 1199780), (2, 599890), (4, 299945), (5, 239956), (10, 119978), (20, 59989), (239, 5020), (251, 4780), (478, 2510), (502, 2390), (956, 1255), (1004, 1195)]