64792040

素因数分解:

$2^3\times 5^1\times {\mathrm{1039}}^1\times {\mathrm{1559}}^1$

素因数の和:2609

約数の個数: 32

約数和(自身を含む): 146016000

約数和(自身を除く): 81223960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1039, 1559, 2078, 3118, 4156, 5195, 6236, 7795, 8312, 10390, 12472, 15590, 20780, 31180, 41560, 62360, 1619801, 3239602, 6479204, 8099005, 12958408, 16198010, 32396020, 64792040]

約数ペア:

[(1, 64792040), (2, 32396020), (4, 16198010), (5, 12958408), (8, 8099005), (10, 6479204), (20, 3239602), (40, 1619801), (1039, 62360), (1559, 41560), (2078, 31180), (3118, 20780), (4156, 15590), (5195, 12472), (6236, 10390), (7795, 8312)]