123569720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1\times {\mathrm{439}}^1$

素因数の和:708

約数の個数: 64

約数和(自身を含む): 288921600

約数和(自身を除く): 165351880

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 227, 248, 310, 439, 454, 620, 878, 908, 1135, 1240, 1756, 1816, 2195, 2270, 3512, 4390, 4540, 7037, 8780, 9080, 13609, 14074, 17560, 27218, 28148, 35185, 54436, 56296, 68045, 70370, 99653, 108872, 136090, 140740, 199306, 272180, 281480, 398612, 498265, 544360, 797224, 996530, 1993060, 3089243, 3986120, 6178486, 12356972, 15446215, 24713944, 30892430, 61784860, 123569720]

約数ペア:

[(1, 123569720), (2, 61784860), (4, 30892430), (5, 24713944), (8, 15446215), (10, 12356972), (20, 6178486), (31, 3986120), (40, 3089243), (62, 1993060), (124, 996530), (155, 797224), (227, 544360), (248, 498265), (310, 398612), (439, 281480), (454, 272180), (620, 199306), (878, 140740), (908, 136090), (1135, 108872), (1240, 99653), (1756, 70370), (1816, 68045), (2195, 56296), (2270, 54436), (3512, 35185), (4390, 28148), (4540, 27218), (7037, 17560), (8780, 14074), (9080, 13609)]