15731380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{359}}^1$

素因数の和:688

約数の個数: 48

約数和(自身を含む): 37981440

約数和(自身を除く): 22250060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 313, 359, 626, 718, 1252, 1436, 1565, 1795, 2191, 2513, 3130, 3590, 4382, 5026, 6260, 7180, 8764, 10052, 10955, 12565, 21910, 25130, 43820, 50260, 112367, 224734, 449468, 561835, 786569, 1123670, 1573138, 2247340, 3146276, 3932845, 7865690, 15731380]

約数ペア:

[(1, 15731380), (2, 7865690), (4, 3932845), (5, 3146276), (7, 2247340), (10, 1573138), (14, 1123670), (20, 786569), (28, 561835), (35, 449468), (70, 224734), (140, 112367), (313, 50260), (359, 43820), (626, 25130), (718, 21910), (1252, 12565), (1436, 10955), (1565, 10052), (1795, 8764), (2191, 7180), (2513, 6260), (3130, 5026), (3590, 4382)]