9973880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{199}}^1$

素因数の和:396

約数の個数: 64

約数和(自身を含む): 25920000

約数和(自身を除く): 15946120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 179, 199, 280, 358, 398, 716, 796, 895, 995, 1253, 1393, 1432, 1592, 1790, 1990, 2506, 2786, 3580, 3980, 5012, 5572, 6265, 6965, 7160, 7960, 10024, 11144, 12530, 13930, 25060, 27860, 35621, 50120, 55720, 71242, 142484, 178105, 249347, 284968, 356210, 498694, 712420, 997388, 1246735, 1424840, 1994776, 2493470, 4986940, 9973880]

約数ペア:

[(1, 9973880), (2, 4986940), (4, 2493470), (5, 1994776), (7, 1424840), (8, 1246735), (10, 997388), (14, 712420), (20, 498694), (28, 356210), (35, 284968), (40, 249347), (56, 178105), (70, 142484), (140, 71242), (179, 55720), (199, 50120), (280, 35621), (358, 27860), (398, 25060), (716, 13930), (796, 12530), (895, 11144), (995, 10024), (1253, 7960), (1393, 7160), (1432, 6965), (1592, 6265), (1790, 5572), (1990, 5012), (2506, 3980), (2786, 3580)]