1331021000

素因数分解:

$2^3\times 5^3\times {\mathrm{1031}}^1\times {\mathrm{1291}}^1$

素因数の和:2343

約数の個数: 64

約数和(自身を含む): 3120024960

約数和(自身を除く): 1789003960

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000, 1031, 1291, 2062, 2582, 4124, 5155, 5164, 6455, 8248, 10310, 10328, 12910, 20620, 25775, 25820, 32275, 41240, 51550, 51640, 64550, 103100, 128875, 129100, 161375, 206200, 257750, 258200, 322750, 515500, 645500, 1031000, 1291000, 1331021, 2662042, 5324084, 6655105, 10648168, 13310210, 26620420, 33275525, 53240840, 66551050, 133102100, 166377625, 266204200, 332755250, 665510500, 1331021000]

約数ペア:

[(1, 1331021000), (2, 665510500), (4, 332755250), (5, 266204200), (8, 166377625), (10, 133102100), (20, 66551050), (25, 53240840), (40, 33275525), (50, 26620420), (100, 13310210), (125, 10648168), (200, 6655105), (250, 5324084), (500, 2662042), (1000, 1331021), (1031, 1291000), (1291, 1031000), (2062, 645500), (2582, 515500), (4124, 322750), (5155, 258200), (5164, 257750), (6455, 206200), (8248, 161375), (10310, 129100), (10328, 128875), (12910, 103100), (20620, 64550), (25775, 51640), (25820, 51550), (32275, 41240)]