25043840

素因数分解:

$2^7\times 5^1\times {\mathrm{109}}^1\times {\mathrm{359}}^1$

素因数の和:487

約数の個数: 64

約数和(自身を含む): 60588000

約数和(自身を除く): 35544160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 218, 320, 359, 436, 545, 640, 718, 872, 1090, 1436, 1744, 1795, 2180, 2872, 3488, 3590, 4360, 5744, 6976, 7180, 8720, 11488, 13952, 14360, 17440, 22976, 28720, 34880, 39131, 45952, 57440, 69760, 78262, 114880, 156524, 195655, 229760, 313048, 391310, 626096, 782620, 1252192, 1565240, 2504384, 3130480, 5008768, 6260960, 12521920, 25043840]

約数ペア:

[(1, 25043840), (2, 12521920), (4, 6260960), (5, 5008768), (8, 3130480), (10, 2504384), (16, 1565240), (20, 1252192), (32, 782620), (40, 626096), (64, 391310), (80, 313048), (109, 229760), (128, 195655), (160, 156524), (218, 114880), (320, 78262), (359, 69760), (436, 57440), (545, 45952), (640, 39131), (718, 34880), (872, 28720), (1090, 22976), (1436, 17440), (1744, 14360), (1795, 13952), (2180, 11488), (2872, 8720), (3488, 7180), (3590, 6976), (4360, 5744)]