8716640

素因数分解:

$2^5\times 5^1\times {\mathrm{157}}^1\times {\mathrm{347}}^1$

素因数の和:519

約数の個数: 48

約数和(自身を含む): 20783952

約数和(自身を除く): 12067312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 157, 160, 314, 347, 628, 694, 785, 1256, 1388, 1570, 1735, 2512, 2776, 3140, 3470, 5024, 5552, 6280, 6940, 11104, 12560, 13880, 25120, 27760, 54479, 55520, 108958, 217916, 272395, 435832, 544790, 871664, 1089580, 1743328, 2179160, 4358320, 8716640]

約数ペア:

[(1, 8716640), (2, 4358320), (4, 2179160), (5, 1743328), (8, 1089580), (10, 871664), (16, 544790), (20, 435832), (32, 272395), (40, 217916), (80, 108958), (157, 55520), (160, 54479), (314, 27760), (347, 25120), (628, 13880), (694, 12560), (785, 11104), (1256, 6940), (1388, 6280), (1570, 5552), (1735, 5024), (2512, 3470), (2776, 3140)]