818249920

素因数分解:

$2^6\times 5^1\times {\mathrm{109}}^1\times {\mathrm{23459}}^1$

素因数の和:23585

約数の個数: 56

約数和(自身を含む): 1966417200

約数和(自身を除く): 1148167280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 160, 218, 320, 436, 545, 872, 1090, 1744, 2180, 3488, 4360, 6976, 8720, 17440, 23459, 34880, 46918, 93836, 117295, 187672, 234590, 375344, 469180, 750688, 938360, 1501376, 1876720, 2557031, 3753440, 5114062, 7506880, 10228124, 12785155, 20456248, 25570310, 40912496, 51140620, 81824992, 102281240, 163649984, 204562480, 409124960, 818249920]

約数ペア:

[(1, 818249920), (2, 409124960), (4, 204562480), (5, 163649984), (8, 102281240), (10, 81824992), (16, 51140620), (20, 40912496), (32, 25570310), (40, 20456248), (64, 12785155), (80, 10228124), (109, 7506880), (160, 5114062), (218, 3753440), (320, 2557031), (436, 1876720), (545, 1501376), (872, 938360), (1090, 750688), (1744, 469180), (2180, 375344), (3488, 234590), (4360, 187672), (6976, 117295), (8720, 93836), (17440, 46918), (23459, 34880)]