638973770

素因数分解:

$2^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{433}}^1\times {\mathrm{853}}^1$

素因数の和:1466

約数の個数: 32

約数和(自身を含む): 1160831952

約数和(自身を除く): 521858182

約数列:

[1, 2, 5, 10, 173, 346, 433, 853, 865, 866, 1706, 1730, 2165, 4265, 4330, 8530, 74909, 147569, 149818, 295138, 369349, 374545, 737845, 738698, 749090, 1475690, 1846745, 3693490, 63897377, 127794754, 319486885, 638973770]

約数ペア:

[(1, 638973770), (2, 319486885), (5, 127794754), (10, 63897377), (173, 3693490), (346, 1846745), (433, 1475690), (853, 749090), (865, 738698), (866, 737845), (1706, 374545), (1730, 369349), (2165, 295138), (4265, 149818), (4330, 147569), (8530, 74909)]