1639448920

素因数分解:

$2^3\times 5^1\times {\mathrm{823}}^1\times {\mathrm{49801}}^1$

素因数の和:50635

約数の個数: 32

約数和(自身を含む): 3693316320

約数和(自身を除く): 2053867400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 823, 1646, 3292, 4115, 6584, 8230, 16460, 32920, 49801, 99602, 199204, 249005, 398408, 498010, 996020, 1992040, 40986223, 81972446, 163944892, 204931115, 327889784, 409862230, 819724460, 1639448920]

約数ペア:

[(1, 1639448920), (2, 819724460), (4, 409862230), (5, 327889784), (8, 204931115), (10, 163944892), (20, 81972446), (40, 40986223), (823, 1992040), (1646, 996020), (3292, 498010), (4115, 398408), (6584, 249005), (8230, 199204), (16460, 99602), (32920, 49801)]