198744080

素因数分解:

$2^4\times 5^1\times {\mathrm{439}}^1\times {\mathrm{5659}}^1$

素因数の和:6111

約数の個数: 40

約数和(自身を含む): 463214400

約数和(自身を除く): 264470320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 439, 878, 1756, 2195, 3512, 4390, 5659, 7024, 8780, 11318, 17560, 22636, 28295, 35120, 45272, 56590, 90544, 113180, 226360, 452720, 2484301, 4968602, 9937204, 12421505, 19874408, 24843010, 39748816, 49686020, 99372040, 198744080]

約数ペア:

[(1, 198744080), (2, 99372040), (4, 49686020), (5, 39748816), (8, 24843010), (10, 19874408), (16, 12421505), (20, 9937204), (40, 4968602), (80, 2484301), (439, 452720), (878, 226360), (1756, 113180), (2195, 90544), (3512, 56590), (4390, 45272), (5659, 35120), (7024, 28295), (8780, 22636), (11318, 17560)]