205792880

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{82981}}^1$

素因数の和:83025

約数の個数: 40

約数和(自身を含む): 493908864

約数和(自身を除く): 288115984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 82981, 165962, 331924, 414905, 663848, 829810, 1327696, 1659620, 2572411, 3319240, 5144822, 6638480, 10289644, 12862055, 20579288, 25724110, 41158576, 51448220, 102896440, 205792880]

約数ペア:

[(1, 205792880), (2, 102896440), (4, 51448220), (5, 41158576), (8, 25724110), (10, 20579288), (16, 12862055), (20, 10289644), (31, 6638480), (40, 5144822), (62, 3319240), (80, 2572411), (124, 1659620), (155, 1327696), (248, 829810), (310, 663848), (496, 414905), (620, 331924), (1240, 165962), (2480, 82981)]