19708640

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{17597}}^1$

素因数の和:17619

約数の個数: 48

約数和(自身を含む): 53216352

約数和(自身を除く): 33507712

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 17597, 35194, 70388, 87985, 123179, 140776, 175970, 246358, 281552, 351940, 492716, 563104, 615895, 703880, 985432, 1231790, 1407760, 1970864, 2463580, 2815520, 3941728, 4927160, 9854320, 19708640]

約数ペア:

[(1, 19708640), (2, 9854320), (4, 4927160), (5, 3941728), (7, 2815520), (8, 2463580), (10, 1970864), (14, 1407760), (16, 1231790), (20, 985432), (28, 703880), (32, 615895), (35, 563104), (40, 492716), (56, 351940), (70, 281552), (80, 246358), (112, 175970), (140, 140776), (160, 123179), (224, 87985), (280, 70388), (560, 35194), (1120, 17597)]