206417080

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1\times {\mathrm{661}}^1$

素因数の和:920

約数の個数: 64

約数和(自身を含む): 479976480

約数和(自身を除く): 273559400

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 211, 296, 370, 422, 661, 740, 844, 1055, 1322, 1480, 1688, 2110, 2644, 3305, 4220, 5288, 6610, 7807, 8440, 13220, 15614, 24457, 26440, 31228, 39035, 48914, 62456, 78070, 97828, 122285, 139471, 156140, 195656, 244570, 278942, 312280, 489140, 557884, 697355, 978280, 1115768, 1394710, 2789420, 5160427, 5578840, 10320854, 20641708, 25802135, 41283416, 51604270, 103208540, 206417080]

約数ペア:

[(1, 206417080), (2, 103208540), (4, 51604270), (5, 41283416), (8, 25802135), (10, 20641708), (20, 10320854), (37, 5578840), (40, 5160427), (74, 2789420), (148, 1394710), (185, 1115768), (211, 978280), (296, 697355), (370, 557884), (422, 489140), (661, 312280), (740, 278942), (844, 244570), (1055, 195656), (1322, 156140), (1480, 139471), (1688, 122285), (2110, 97828), (2644, 78070), (3305, 62456), (4220, 48914), (5288, 39035), (6610, 31228), (7807, 26440), (8440, 24457), (13220, 15614)]