978280

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{661}}^1$

素因数の和:709

約数の個数: 32

約数和(自身を含む): 2264040

約数和(自身を除く): 1285760

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 661, 740, 1322, 1480, 2644, 3305, 5288, 6610, 13220, 24457, 26440, 48914, 97828, 122285, 195656, 244570, 489140, 978280]

約数ペア:

[(1, 978280), (2, 489140), (4, 244570), (5, 195656), (8, 122285), (10, 97828), (20, 48914), (37, 26440), (40, 24457), (74, 13220), (148, 6610), (185, 5288), (296, 3305), (370, 2644), (661, 1480), (740, 1322)]