81308220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{443}}^1$

素因数の和:504

約数の個数: 192

約数和(自身を含む): 286433280

約数和(自身を除く): 205125060

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 23, 28, 30, 35, 38, 42, 46, 57, 60, 69, 70, 76, 84, 92, 95, 105, 114, 115, 133, 138, 140, 161, 190, 210, 228, 230, 266, 276, 285, 322, 345, 380, 399, 420, 437, 443, 460, 483, 532, 570, 644, 665, 690, 798, 805, 874, 886, 966, 1140, 1311, 1329, 1330, 1380, 1596, 1610, 1748, 1772, 1932, 1995, 2185, 2215, 2415, 2622, 2658, 2660, 3059, 3101, 3220, 3990, 4370, 4430, 4830, 5244, 5316, 6118, 6202, 6555, 6645, 7980, 8417, 8740, 8860, 9177, 9303, 9660, 10189, 12236, 12404, 13110, 13290, 15295, 15505, 16834, 18354, 18606, 20378, 25251, 26220, 26580, 30567, 30590, 31010, 33668, 36708, 37212, 40756, 42085, 45885, 46515, 50502, 50945, 58919, 61134, 61180, 62020, 71323, 84170, 91770, 93030, 101004, 101890, 117838, 122268, 126255, 142646, 152835, 168340, 176757, 183540, 186060, 193591, 203780, 213969, 235676, 252510, 285292, 294595, 305670, 353514, 356615, 387182, 427938, 505020, 580773, 589190, 611340, 707028, 713230, 774364, 855876, 883785, 967955, 1069845, 1161546, 1178380, 1355137, 1426460, 1767570, 1935910, 2139690, 2323092, 2710274, 2903865, 3535140, 3871820, 4065411, 4279380, 5420548, 5807730, 6775685, 8130822, 11615460, 13551370, 16261644, 20327055, 27102740, 40654110, 81308220]

約数ペア:

[(1, 81308220), (2, 40654110), (3, 27102740), (4, 20327055), (5, 16261644), (6, 13551370), (7, 11615460), (10, 8130822), (12, 6775685), (14, 5807730), (15, 5420548), (19, 4279380), (20, 4065411), (21, 3871820), (23, 3535140), (28, 2903865), (30, 2710274), (35, 2323092), (38, 2139690), (42, 1935910), (46, 1767570), (57, 1426460), (60, 1355137), (69, 1178380), (70, 1161546), (76, 1069845), (84, 967955), (92, 883785), (95, 855876), (105, 774364), (114, 713230), (115, 707028), (133, 611340), (138, 589190), (140, 580773), (161, 505020), (190, 427938), (210, 387182), (228, 356615), (230, 353514), (266, 305670), (276, 294595), (285, 285292), (322, 252510), (345, 235676), (380, 213969), (399, 203780), (420, 193591), (437, 186060), (443, 183540), (460, 176757), (483, 168340), (532, 152835), (570, 142646), (644, 126255), (665, 122268), (690, 117838), (798, 101890), (805, 101004), (874, 93030), (886, 91770), (966, 84170), (1140, 71323), (1311, 62020), (1329, 61180), (1330, 61134), (1380, 58919), (1596, 50945), (1610, 50502), (1748, 46515), (1772, 45885), (1932, 42085), (1995, 40756), (2185, 37212), (2215, 36708), (2415, 33668), (2622, 31010), (2658, 30590), (2660, 30567), (3059, 26580), (3101, 26220), (3220, 25251), (3990, 20378), (4370, 18606), (4430, 18354), (4830, 16834), (5244, 15505), (5316, 15295), (6118, 13290), (6202, 13110), (6555, 12404), (6645, 12236), (7980, 10189), (8417, 9660), (8740, 9303), (8860, 9177)]