390880

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{349}}^1$

素因数の和:371

約数の個数: 48

約数和(自身を含む): 1058400

約数和(自身を除く): 667520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 349, 560, 698, 1120, 1396, 1745, 2443, 2792, 3490, 4886, 5584, 6980, 9772, 11168, 12215, 13960, 19544, 24430, 27920, 39088, 48860, 55840, 78176, 97720, 195440, 390880]

約数ペア:

[(1, 390880), (2, 195440), (4, 97720), (5, 78176), (7, 55840), (8, 48860), (10, 39088), (14, 27920), (16, 24430), (20, 19544), (28, 13960), (32, 12215), (35, 11168), (40, 9772), (56, 6980), (70, 5584), (80, 4886), (112, 3490), (140, 2792), (160, 2443), (224, 1745), (280, 1396), (349, 1120), (560, 698)]