1640752040

素因数分解:

$2^3\times 5^1\times {\mathrm{743}}^1\times {\mathrm{55207}}^1$

素因数の和:55961

約数の個数: 32

約数和(自身を含む): 3696727680

約数和(自身を除く): 2055975640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 743, 1486, 2972, 3715, 5944, 7430, 14860, 29720, 55207, 110414, 220828, 276035, 441656, 552070, 1104140, 2208280, 41018801, 82037602, 164075204, 205094005, 328150408, 410188010, 820376020, 1640752040]

約数ペア:

[(1, 1640752040), (2, 820376020), (4, 410188010), (5, 328150408), (8, 205094005), (10, 164075204), (20, 82037602), (40, 41018801), (743, 2208280), (1486, 1104140), (2972, 552070), (3715, 441656), (5944, 276035), (7430, 220828), (14860, 110414), (29720, 55207)]