42784940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{439}}^1\times {\mathrm{443}}^1$

素因数の和:902

約数の個数: 48

約数和(自身を含む): 98461440

約数和(自身を除く): 55676500

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 439, 443, 878, 886, 1756, 1772, 2195, 2215, 4390, 4430, 4829, 4873, 8780, 8860, 9658, 9746, 19316, 19492, 24145, 24365, 48290, 48730, 96580, 97460, 194477, 388954, 777908, 972385, 1944770, 2139247, 3889540, 4278494, 8556988, 10696235, 21392470, 42784940]

約数ペア:

[(1, 42784940), (2, 21392470), (4, 10696235), (5, 8556988), (10, 4278494), (11, 3889540), (20, 2139247), (22, 1944770), (44, 972385), (55, 777908), (110, 388954), (220, 194477), (439, 97460), (443, 96580), (878, 48730), (886, 48290), (1756, 24365), (1772, 24145), (2195, 19492), (2215, 19316), (4390, 9746), (4430, 9658), (4829, 8860), (4873, 8780)]