2100067280

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{133253}}^1$

素因数の和:133463

約数の個数: 40

約数和(自身を含む): 4907478312

約数和(自身を除く): 2807411032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1576, 1970, 3152, 3940, 7880, 15760, 133253, 266506, 533012, 666265, 1066024, 1332530, 2132048, 2665060, 5330120, 10660240, 26250841, 52501682, 105003364, 131254205, 210006728, 262508410, 420013456, 525016820, 1050033640, 2100067280]

約数ペア:

[(1, 2100067280), (2, 1050033640), (4, 525016820), (5, 420013456), (8, 262508410), (10, 210006728), (16, 131254205), (20, 105003364), (40, 52501682), (80, 26250841), (197, 10660240), (394, 5330120), (788, 2665060), (985, 2132048), (1576, 1332530), (1970, 1066024), (3152, 666265), (3940, 533012), (7880, 266506), (15760, 133253)]