55428280

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{673}}^1$

素因数の和:784

約数の個数: 64

約数和(自身を含む): 131025600

約数和(自身を除く): 75597320

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 71, 116, 142, 145, 232, 284, 290, 355, 568, 580, 673, 710, 1160, 1346, 1420, 2059, 2692, 2840, 3365, 4118, 5384, 6730, 8236, 10295, 13460, 16472, 19517, 20590, 26920, 39034, 41180, 47783, 78068, 82360, 95566, 97585, 156136, 191132, 195170, 238915, 382264, 390340, 477830, 780680, 955660, 1385707, 1911320, 2771414, 5542828, 6928535, 11085656, 13857070, 27714140, 55428280]

約数ペア:

[(1, 55428280), (2, 27714140), (4, 13857070), (5, 11085656), (8, 6928535), (10, 5542828), (20, 2771414), (29, 1911320), (40, 1385707), (58, 955660), (71, 780680), (116, 477830), (142, 390340), (145, 382264), (232, 238915), (284, 195170), (290, 191132), (355, 156136), (568, 97585), (580, 95566), (673, 82360), (710, 78068), (1160, 47783), (1346, 41180), (1420, 39034), (2059, 26920), (2692, 20590), (2840, 19517), (3365, 16472), (4118, 13460), (5384, 10295), (6730, 8236)]