18742000

素因数分解:

$2^4\times 5^3\times {\mathrm{9371}}^1$

素因数の和:9394

約数の個数: 40

約数和(自身を含む): 45322992

約数和(自身を除く): 26580992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 9371, 18742, 37484, 46855, 74968, 93710, 149936, 187420, 234275, 374840, 468550, 749680, 937100, 1171375, 1874200, 2342750, 3748400, 4685500, 9371000, 18742000]

約数ペア:

[(1, 18742000), (2, 9371000), (4, 4685500), (5, 3748400), (8, 2342750), (10, 1874200), (16, 1171375), (20, 937100), (25, 749680), (40, 468550), (50, 374840), (80, 234275), (100, 187420), (125, 149936), (200, 93710), (250, 74968), (400, 46855), (500, 37484), (1000, 18742), (2000, 9371)]