31304800

素因数分解:

$2^5\times 5^2\times {\mathrm{109}}^1\times {\mathrm{359}}^1$

素因数の和:488

約数の個数: 72

約数和(自身を含む): 77338800

約数和(自身を除く): 46034000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 109, 160, 200, 218, 359, 400, 436, 545, 718, 800, 872, 1090, 1436, 1744, 1795, 2180, 2725, 2872, 3488, 3590, 4360, 5450, 5744, 7180, 8720, 8975, 10900, 11488, 14360, 17440, 17950, 21800, 28720, 35900, 39131, 43600, 57440, 71800, 78262, 87200, 143600, 156524, 195655, 287200, 313048, 391310, 626096, 782620, 978275, 1252192, 1565240, 1956550, 3130480, 3913100, 6260960, 7826200, 15652400, 31304800]

約数ペア:

[(1, 31304800), (2, 15652400), (4, 7826200), (5, 6260960), (8, 3913100), (10, 3130480), (16, 1956550), (20, 1565240), (25, 1252192), (32, 978275), (40, 782620), (50, 626096), (80, 391310), (100, 313048), (109, 287200), (160, 195655), (200, 156524), (218, 143600), (359, 87200), (400, 78262), (436, 71800), (545, 57440), (718, 43600), (800, 39131), (872, 35900), (1090, 28720), (1436, 21800), (1744, 17950), (1795, 17440), (2180, 14360), (2725, 11488), (2872, 10900), (3488, 8975), (3590, 8720), (4360, 7180), (5450, 5744)]