99700000

素因数分解:

$2^5\times 5^5\times {\mathrm{997}}^1$

素因数の和:1032

約数の個数: 72

約数和(自身を含む): 245585844

約数和(自身を除く): 145885844

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 625, 800, 997, 1000, 1250, 1994, 2000, 2500, 3125, 3988, 4000, 4985, 5000, 6250, 7976, 9970, 10000, 12500, 15952, 19940, 20000, 24925, 25000, 31904, 39880, 49850, 50000, 79760, 99700, 100000, 124625, 159520, 199400, 249250, 398800, 498500, 623125, 797600, 997000, 1246250, 1994000, 2492500, 3115625, 3988000, 4985000, 6231250, 9970000, 12462500, 19940000, 24925000, 49850000, 99700000]

約数ペア:

[(1, 99700000), (2, 49850000), (4, 24925000), (5, 19940000), (8, 12462500), (10, 9970000), (16, 6231250), (20, 4985000), (25, 3988000), (32, 3115625), (40, 2492500), (50, 1994000), (80, 1246250), (100, 997000), (125, 797600), (160, 623125), (200, 498500), (250, 398800), (400, 249250), (500, 199400), (625, 159520), (800, 124625), (997, 100000), (1000, 99700), (1250, 79760), (1994, 50000), (2000, 49850), (2500, 39880), (3125, 31904), (3988, 25000), (4000, 24925), (4985, 20000), (5000, 19940), (6250, 15952), (7976, 12500), (9970, 10000)]