81309228

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{967}}^1$

素因数の和:1012

約数の個数: 144

約数和(自身を含む): 259547904

約数和(自身を除く): 178238676

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 13, 14, 21, 22, 26, 28, 33, 39, 42, 44, 49, 52, 66, 77, 78, 84, 91, 98, 132, 143, 147, 154, 156, 182, 196, 231, 273, 286, 294, 308, 364, 429, 462, 539, 546, 572, 588, 637, 858, 924, 967, 1001, 1078, 1092, 1274, 1617, 1716, 1911, 1934, 2002, 2156, 2548, 2901, 3003, 3234, 3822, 3868, 4004, 5802, 6006, 6468, 6769, 7007, 7644, 10637, 11604, 12012, 12571, 13538, 14014, 20307, 21021, 21274, 25142, 27076, 28028, 31911, 37713, 40614, 42042, 42548, 47383, 50284, 63822, 74459, 75426, 81228, 84084, 87997, 94766, 127644, 138281, 142149, 148918, 150852, 175994, 189532, 223377, 263991, 276562, 284298, 297836, 351988, 414843, 446754, 521213, 527982, 553124, 568596, 615979, 829686, 893508, 967967, 1042426, 1055964, 1231958, 1563639, 1659372, 1847937, 1935934, 2084852, 2463916, 2903901, 3127278, 3695874, 3871868, 5807802, 6254556, 6775769, 7391748, 11615604, 13551538, 20327307, 27103076, 40654614, 81309228]

約数ペア:

[(1, 81309228), (2, 40654614), (3, 27103076), (4, 20327307), (6, 13551538), (7, 11615604), (11, 7391748), (12, 6775769), (13, 6254556), (14, 5807802), (21, 3871868), (22, 3695874), (26, 3127278), (28, 2903901), (33, 2463916), (39, 2084852), (42, 1935934), (44, 1847937), (49, 1659372), (52, 1563639), (66, 1231958), (77, 1055964), (78, 1042426), (84, 967967), (91, 893508), (98, 829686), (132, 615979), (143, 568596), (147, 553124), (154, 527982), (156, 521213), (182, 446754), (196, 414843), (231, 351988), (273, 297836), (286, 284298), (294, 276562), (308, 263991), (364, 223377), (429, 189532), (462, 175994), (539, 150852), (546, 148918), (572, 142149), (588, 138281), (637, 127644), (858, 94766), (924, 87997), (967, 84084), (1001, 81228), (1078, 75426), (1092, 74459), (1274, 63822), (1617, 50284), (1716, 47383), (1911, 42548), (1934, 42042), (2002, 40614), (2156, 37713), (2548, 31911), (2901, 28028), (3003, 27076), (3234, 25142), (3822, 21274), (3868, 21021), (4004, 20307), (5802, 14014), (6006, 13538), (6468, 12571), (6769, 12012), (7007, 11604), (7644, 10637)]