13256740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{179}}^1$

素因数の和:241

約数の個数: 72

約数和(自身を含む): 33445440

約数和(自身を除く): 20188700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 179, 230, 322, 358, 460, 529, 644, 716, 805, 895, 1058, 1253, 1610, 1790, 2116, 2506, 2645, 3220, 3580, 3703, 4117, 5012, 5290, 6265, 7406, 8234, 10580, 12530, 14812, 16468, 18515, 20585, 25060, 28819, 37030, 41170, 57638, 74060, 82340, 94691, 115276, 144095, 189382, 288190, 378764, 473455, 576380, 662837, 946910, 1325674, 1893820, 2651348, 3314185, 6628370, 13256740]

約数ペア:

[(1, 13256740), (2, 6628370), (4, 3314185), (5, 2651348), (7, 1893820), (10, 1325674), (14, 946910), (20, 662837), (23, 576380), (28, 473455), (35, 378764), (46, 288190), (70, 189382), (92, 144095), (115, 115276), (140, 94691), (161, 82340), (179, 74060), (230, 57638), (322, 41170), (358, 37030), (460, 28819), (529, 25060), (644, 20585), (716, 18515), (805, 16468), (895, 14812), (1058, 12530), (1253, 10580), (1610, 8234), (1790, 7406), (2116, 6265), (2506, 5290), (2645, 5012), (3220, 4117), (3580, 3703)]