18731800

素因数分解:

$2^3\times 5^2\times {\mathrm{73}}^1\times {\mathrm{1283}}^1$

素因数の和:1372

約数の個数: 48

約数和(自身を含む): 44182440

約数和(自身を除く): 25450640

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 73, 100, 146, 200, 292, 365, 584, 730, 1283, 1460, 1825, 2566, 2920, 3650, 5132, 6415, 7300, 10264, 12830, 14600, 25660, 32075, 51320, 64150, 93659, 128300, 187318, 256600, 374636, 468295, 749272, 936590, 1873180, 2341475, 3746360, 4682950, 9365900, 18731800]

約数ペア:

[(1, 18731800), (2, 9365900), (4, 4682950), (5, 3746360), (8, 2341475), (10, 1873180), (20, 936590), (25, 749272), (40, 468295), (50, 374636), (73, 256600), (100, 187318), (146, 128300), (200, 93659), (292, 64150), (365, 51320), (584, 32075), (730, 25660), (1283, 14600), (1460, 12830), (1825, 10264), (2566, 7300), (2920, 6415), (3650, 5132)]