64881040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{115859}}^1$

素因数の和:115879

約数の個数: 40

約数和(自身を含む): 172399680

約数和(自身を除く): 107518640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 115859, 231718, 463436, 579295, 811013, 926872, 1158590, 1622026, 1853744, 2317180, 3244052, 4055065, 4634360, 6488104, 8110130, 9268720, 12976208, 16220260, 32440520, 64881040]

約数ペア:

[(1, 64881040), (2, 32440520), (4, 16220260), (5, 12976208), (7, 9268720), (8, 8110130), (10, 6488104), (14, 4634360), (16, 4055065), (20, 3244052), (28, 2317180), (35, 1853744), (40, 1622026), (56, 1158590), (70, 926872), (80, 811013), (112, 579295), (140, 463436), (280, 231718), (560, 115859)]