19895680

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{4441}}^1$

素因数の和:4467

約数の個数: 64

約数和(自身を含む): 54370080

約数和(自身を除く): 34474400

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, 4441, 4480, 8882, 17764, 22205, 31087, 35528, 44410, 62174, 71056, 88820, 124348, 142112, 155435, 177640, 248696, 284224, 310870, 355280, 497392, 568448, 621740, 710560, 994784, 1243480, 1421120, 1989568, 2486960, 2842240, 3979136, 4973920, 9947840, 19895680]

約数ペア:

[(1, 19895680), (2, 9947840), (4, 4973920), (5, 3979136), (7, 2842240), (8, 2486960), (10, 1989568), (14, 1421120), (16, 1243480), (20, 994784), (28, 710560), (32, 621740), (35, 568448), (40, 497392), (56, 355280), (64, 310870), (70, 284224), (80, 248696), (112, 177640), (128, 155435), (140, 142112), (160, 124348), (224, 88820), (280, 71056), (320, 62174), (448, 44410), (560, 35528), (640, 31087), (896, 22205), (1120, 17764), (2240, 8882), (4441, 4480)]