19922560

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{4447}}^1$

素因数の和:4473

約数の個数: 64

約数和(自身を含む): 54443520

約数和(自身を除く): 34520960

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, 4447, 4480, 8894, 17788, 22235, 31129, 35576, 44470, 62258, 71152, 88940, 124516, 142304, 155645, 177880, 249032, 284608, 311290, 355760, 498064, 569216, 622580, 711520, 996128, 1245160, 1423040, 1992256, 2490320, 2846080, 3984512, 4980640, 9961280, 19922560]

約数ペア:

[(1, 19922560), (2, 9961280), (4, 4980640), (5, 3984512), (7, 2846080), (8, 2490320), (10, 1992256), (14, 1423040), (16, 1245160), (20, 996128), (28, 711520), (32, 622580), (35, 569216), (40, 498064), (56, 355760), (64, 311290), (70, 284608), (80, 249032), (112, 177880), (128, 155645), (140, 142304), (160, 124516), (224, 88940), (280, 71152), (320, 62258), (448, 44470), (560, 35576), (640, 31129), (896, 22235), (1120, 17788), (2240, 8894), (4447, 4480)]