205123910000

素因数分解:

$2^4\times 5^4\times {\mathrm{20512391}}^1$

素因数の和:20512419

約数の個数: 50

約数和(自身を含む): 496625522712

約数和(自身を除く): 291501612712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 5000, 10000, 20512391, 41024782, 82049564, 102561955, 164099128, 205123910, 328198256, 410247820, 512809775, 820495640, 1025619550, 1640991280, 2051239100, 2564048875, 4102478200, 5128097750, 8204956400, 10256195500, 12820244375, 20512391000, 25640488750, 41024782000, 51280977500, 102561955000, 205123910000]

約数ペア:

[(1, 205123910000), (2, 102561955000), (4, 51280977500), (5, 41024782000), (8, 25640488750), (10, 20512391000), (16, 12820244375), (20, 10256195500), (25, 8204956400), (40, 5128097750), (50, 4102478200), (80, 2564048875), (100, 2051239100), (125, 1640991280), (200, 1025619550), (250, 820495640), (400, 512809775), (500, 410247820), (625, 328198256), (1000, 205123910), (1250, 164099128), (2000, 102561955), (2500, 82049564), (5000, 41024782), (10000, 20512391)]