11945000

素因数分解:

$2^3\times 5^4\times {\mathrm{2389}}^1$

素因数の和:2415

約数の個数: 40

約数和(自身を含む): 27998850

約数和(自身を除く): 16053850

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2389, 2500, 4778, 5000, 9556, 11945, 19112, 23890, 47780, 59725, 95560, 119450, 238900, 298625, 477800, 597250, 1194500, 1493125, 2389000, 2986250, 5972500, 11945000]

約数ペア:

[(1, 11945000), (2, 5972500), (4, 2986250), (5, 2389000), (8, 1493125), (10, 1194500), (20, 597250), (25, 477800), (40, 298625), (50, 238900), (100, 119450), (125, 95560), (200, 59725), (250, 47780), (500, 23890), (625, 19112), (1000, 11945), (1250, 9556), (2389, 5000), (2500, 4778)]