2781460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{269}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 6531840

約数和(自身を除く): 3750380

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 94, 110, 188, 220, 235, 269, 470, 517, 538, 940, 1034, 1076, 1345, 2068, 2585, 2690, 2959, 5170, 5380, 5918, 10340, 11836, 12643, 14795, 25286, 29590, 50572, 59180, 63215, 126430, 139073, 252860, 278146, 556292, 695365, 1390730, 2781460]

約数ペア:

[(1, 2781460), (2, 1390730), (4, 695365), (5, 556292), (10, 278146), (11, 252860), (20, 139073), (22, 126430), (44, 63215), (47, 59180), (55, 50572), (94, 29590), (110, 25286), (188, 14795), (220, 12643), (235, 11836), (269, 10340), (470, 5918), (517, 5380), (538, 5170), (940, 2959), (1034, 2690), (1076, 2585), (1345, 2068)]