209745720

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1237}}^1$

素因数の和:1414

約数の個数: 128

約数和(自身を含む): 704174400

約数和(自身を除く): 494428680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 157, 180, 216, 270, 314, 360, 471, 540, 628, 785, 942, 1080, 1237, 1256, 1413, 1570, 1884, 2355, 2474, 2826, 3140, 3711, 3768, 4239, 4710, 4948, 5652, 6185, 6280, 7065, 7422, 8478, 9420, 9896, 11133, 11304, 12370, 14130, 14844, 16956, 18555, 18840, 21195, 22266, 24740, 28260, 29688, 33399, 33912, 37110, 42390, 44532, 49480, 55665, 56520, 66798, 74220, 84780, 89064, 111330, 133596, 148440, 166995, 169560, 194209, 222660, 267192, 333990, 388418, 445320, 582627, 667980, 776836, 971045, 1165254, 1335960, 1553672, 1747881, 1942090, 2330508, 2913135, 3495762, 3884180, 4661016, 5243643, 5826270, 6991524, 7768360, 8739405, 10487286, 11652540, 13983048, 17478810, 20974572, 23305080, 26218215, 34957620, 41949144, 52436430, 69915240, 104872860, 209745720]

約数ペア:

[(1, 209745720), (2, 104872860), (3, 69915240), (4, 52436430), (5, 41949144), (6, 34957620), (8, 26218215), (9, 23305080), (10, 20974572), (12, 17478810), (15, 13983048), (18, 11652540), (20, 10487286), (24, 8739405), (27, 7768360), (30, 6991524), (36, 5826270), (40, 5243643), (45, 4661016), (54, 3884180), (60, 3495762), (72, 2913135), (90, 2330508), (108, 1942090), (120, 1747881), (135, 1553672), (157, 1335960), (180, 1165254), (216, 971045), (270, 776836), (314, 667980), (360, 582627), (471, 445320), (540, 388418), (628, 333990), (785, 267192), (942, 222660), (1080, 194209), (1237, 169560), (1256, 166995), (1413, 148440), (1570, 133596), (1884, 111330), (2355, 89064), (2474, 84780), (2826, 74220), (3140, 66798), (3711, 56520), (3768, 55665), (4239, 49480), (4710, 44532), (4948, 42390), (5652, 37110), (6185, 33912), (6280, 33399), (7065, 29688), (7422, 28260), (8478, 24740), (9420, 22266), (9896, 21195), (11133, 18840), (11304, 18555), (12370, 16956), (14130, 14844)]