28943420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131561}}^1$

素因数の和:131581

約数の個数: 24

約数和(自身を含む): 66307248

約数和(自身を除く): 37363828

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 131561, 263122, 526244, 657805, 1315610, 1447171, 2631220, 2894342, 5788684, 7235855, 14471710, 28943420]

約数ペア:

[(1, 28943420), (2, 14471710), (4, 7235855), (5, 5788684), (10, 2894342), (11, 2631220), (20, 1447171), (22, 1315610), (44, 657805), (55, 526244), (110, 263122), (220, 131561)]