81400220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{16087}}^1$

素因数の和:16130

約数の個数: 48

約数和(自身を含む): 194600448

約数和(自身を除く): 113200228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 460, 506, 1012, 1265, 2530, 5060, 16087, 32174, 64348, 80435, 160870, 176957, 321740, 353914, 370001, 707828, 740002, 884785, 1480004, 1769570, 1850005, 3539140, 3700010, 4070011, 7400020, 8140022, 16280044, 20350055, 40700110, 81400220]

約数ペア:

[(1, 81400220), (2, 40700110), (4, 20350055), (5, 16280044), (10, 8140022), (11, 7400020), (20, 4070011), (22, 3700010), (23, 3539140), (44, 1850005), (46, 1769570), (55, 1480004), (92, 884785), (110, 740002), (115, 707828), (220, 370001), (230, 353914), (253, 321740), (460, 176957), (506, 160870), (1012, 80435), (1265, 64348), (2530, 32174), (5060, 16087)]