2189320

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{1117}}^1$

素因数の和:1142

約数の個数: 48

約数和(自身を含む): 5735340

約数和(自身を除く): 3546020

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1117, 1960, 2234, 4468, 5585, 7819, 8936, 11170, 15638, 22340, 31276, 39095, 44680, 54733, 62552, 78190, 109466, 156380, 218932, 273665, 312760, 437864, 547330, 1094660, 2189320]

約数ペア:

[(1, 2189320), (2, 1094660), (4, 547330), (5, 437864), (7, 312760), (8, 273665), (10, 218932), (14, 156380), (20, 109466), (28, 78190), (35, 62552), (40, 54733), (49, 44680), (56, 39095), (70, 31276), (98, 22340), (140, 15638), (196, 11170), (245, 8936), (280, 7819), (392, 5585), (490, 4468), (980, 2234), (1117, 1960)]