18327680

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{4091}}^1$

素因数の和:4117

約数の個数: 64

約数和(自身を含む): 50086080

約数和(自身を除く): 31758400

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, 4091, 4480, 8182, 16364, 20455, 28637, 32728, 40910, 57274, 65456, 81820, 114548, 130912, 143185, 163640, 229096, 261824, 286370, 327280, 458192, 523648, 572740, 654560, 916384, 1145480, 1309120, 1832768, 2290960, 2618240, 3665536, 4581920, 9163840, 18327680]

約数ペア:

[(1, 18327680), (2, 9163840), (4, 4581920), (5, 3665536), (7, 2618240), (8, 2290960), (10, 1832768), (14, 1309120), (16, 1145480), (20, 916384), (28, 654560), (32, 572740), (35, 523648), (40, 458192), (56, 327280), (64, 286370), (70, 261824), (80, 229096), (112, 163640), (128, 143185), (140, 130912), (160, 114548), (224, 81820), (280, 65456), (320, 57274), (448, 40910), (560, 32728), (640, 28637), (896, 20455), (1120, 16364), (2240, 8182), (4091, 4480)]