2179160

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{347}}^1$

素因数の和:515

約数の個数: 32

約数和(自身を含む): 4948560

約数和(自身を除く): 2769400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 347, 628, 694, 785, 1256, 1388, 1570, 1735, 2776, 3140, 3470, 6280, 6940, 13880, 54479, 108958, 217916, 272395, 435832, 544790, 1089580, 2179160]

約数ペア:

[(1, 2179160), (2, 1089580), (4, 544790), (5, 435832), (8, 272395), (10, 217916), (20, 108958), (40, 54479), (157, 13880), (314, 6940), (347, 6280), (628, 3470), (694, 3140), (785, 2776), (1256, 1735), (1388, 1570)]