199402400

素因数分解:

$2^5\times 5^2\times {\mathrm{249253}}^1$

素因数の和:249273

約数の個数: 36

約数和(自身を含む): 486793062

約数和(自身を除く): 287390662

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 249253, 498506, 997012, 1246265, 1994024, 2492530, 3988048, 4985060, 6231325, 7976096, 9970120, 12462650, 19940240, 24925300, 39880480, 49850600, 99701200, 199402400]

約数ペア:

[(1, 199402400), (2, 99701200), (4, 49850600), (5, 39880480), (8, 24925300), (10, 19940240), (16, 12462650), (20, 9970120), (25, 7976096), (32, 6231325), (40, 4985060), (50, 3988048), (80, 2492530), (100, 1994024), (160, 1246265), (200, 997012), (400, 498506), (800, 249253)]