20574880

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5591}}^1$

素因数の和:5629

約数の個数: 48

約数和(自身を含む): 50730624

約数和(自身を除く): 30155744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 368, 460, 736, 920, 1840, 3680, 5591, 11182, 22364, 27955, 44728, 55910, 89456, 111820, 128593, 178912, 223640, 257186, 447280, 514372, 642965, 894560, 1028744, 1285930, 2057488, 2571860, 4114976, 5143720, 10287440, 20574880]

約数ペア:

[(1, 20574880), (2, 10287440), (4, 5143720), (5, 4114976), (8, 2571860), (10, 2057488), (16, 1285930), (20, 1028744), (23, 894560), (32, 642965), (40, 514372), (46, 447280), (80, 257186), (92, 223640), (115, 178912), (160, 128593), (184, 111820), (230, 89456), (368, 55910), (460, 44728), (736, 27955), (920, 22364), (1840, 11182), (3680, 5591)]