19671680

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{4391}}^1$

素因数の和:4417

約数の個数: 64

約数和(自身を含む): 53758080

約数和(自身を除く): 34086400

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, 4391, 4480, 8782, 17564, 21955, 30737, 35128, 43910, 61474, 70256, 87820, 122948, 140512, 153685, 175640, 245896, 281024, 307370, 351280, 491792, 562048, 614740, 702560, 983584, 1229480, 1405120, 1967168, 2458960, 2810240, 3934336, 4917920, 9835840, 19671680]

約数ペア:

[(1, 19671680), (2, 9835840), (4, 4917920), (5, 3934336), (7, 2810240), (8, 2458960), (10, 1967168), (14, 1405120), (16, 1229480), (20, 983584), (28, 702560), (32, 614740), (35, 562048), (40, 491792), (56, 351280), (64, 307370), (70, 281024), (80, 245896), (112, 175640), (128, 153685), (140, 140512), (160, 122948), (224, 87820), (280, 70256), (320, 61474), (448, 43910), (560, 35128), (640, 30737), (896, 21955), (1120, 17564), (2240, 8782), (4391, 4480)]