40727680

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{9091}}^1$

素因数の和:9117

約数の個数: 64

約数和(自身を含む): 111286080

約数和(自身を除く): 70558400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 9091, 18182, 36364, 45455, 63637, 72728, 90910, 127274, 145456, 181820, 254548, 290912, 318185, 363640, 509096, 581824, 636370, 727280, 1018192, 1163648, 1272740, 1454560, 2036384, 2545480, 2909120, 4072768, 5090960, 5818240, 8145536, 10181920, 20363840, 40727680]

約数ペア:

[(1, 40727680), (2, 20363840), (4, 10181920), (5, 8145536), (7, 5818240), (8, 5090960), (10, 4072768), (14, 2909120), (16, 2545480), (20, 2036384), (28, 1454560), (32, 1272740), (35, 1163648), (40, 1018192), (56, 727280), (64, 636370), (70, 581824), (80, 509096), (112, 363640), (128, 318185), (140, 290912), (160, 254548), (224, 181820), (280, 145456), (320, 127274), (448, 90910), (560, 72728), (640, 63637), (896, 45455), (1120, 36364), (2240, 18182), (4480, 9091)]