81324180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:163

約数の個数: 288

約数和(自身を含む): 307507200

約数和(自身を除く): 226183020

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 43, 45, 57, 60, 63, 70, 76, 79, 84, 86, 90, 95, 105, 114, 126, 129, 133, 140, 158, 171, 172, 180, 190, 210, 215, 228, 237, 252, 258, 266, 285, 301, 315, 316, 342, 380, 387, 395, 399, 420, 430, 474, 516, 532, 553, 570, 602, 630, 645, 665, 684, 711, 774, 790, 798, 817, 855, 860, 903, 948, 1106, 1140, 1185, 1197, 1204, 1260, 1290, 1330, 1422, 1501, 1505, 1548, 1580, 1596, 1634, 1659, 1710, 1806, 1935, 1995, 2212, 2370, 2394, 2451, 2580, 2660, 2709, 2765, 2844, 3002, 3010, 3268, 3318, 3397, 3420, 3555, 3612, 3870, 3990, 4085, 4503, 4515, 4740, 4788, 4902, 4977, 5418, 5530, 5719, 5985, 6004, 6020, 6636, 6794, 7110, 7353, 7505, 7740, 7980, 8170, 8295, 9006, 9030, 9804, 9954, 10191, 10507, 10836, 11060, 11438, 11970, 12255, 13509, 13545, 13588, 14220, 14706, 15010, 16340, 16590, 16985, 17157, 18012, 18060, 19908, 20382, 21014, 22515, 22876, 23779, 23940, 24510, 24885, 27018, 27090, 28595, 29412, 30020, 30573, 31521, 33180, 33970, 34314, 36765, 40764, 42028, 45030, 47558, 49020, 49770, 50955, 51471, 52535, 54036, 54180, 57190, 61146, 63042, 64543, 67545, 67940, 68628, 71337, 73530, 85785, 90060, 94563, 95116, 99540, 101910, 102942, 105070, 114380, 118895, 122292, 126084, 129086, 135090, 142674, 147060, 152865, 157605, 171570, 189126, 193629, 203820, 205884, 210140, 214011, 237790, 257355, 258172, 270180, 285348, 305730, 315210, 322715, 343140, 356685, 378252, 387258, 428022, 451801, 472815, 475580, 514710, 580887, 611460, 630420, 645430, 713370, 774516, 856044, 903602, 945630, 968145, 1029420, 1070055, 1161774, 1290860, 1355403, 1426740, 1807204, 1891260, 1936290, 2140110, 2259005, 2323548, 2710806, 2904435, 3872580, 4066209, 4280220, 4518010, 5421612, 5808870, 6777015, 8132418, 9036020, 11617740, 13554030, 16264836, 20331045, 27108060, 40662090, 81324180]

約数ペア:

[(1, 81324180), (2, 40662090), (3, 27108060), (4, 20331045), (5, 16264836), (6, 13554030), (7, 11617740), (9, 9036020), (10, 8132418), (12, 6777015), (14, 5808870), (15, 5421612), (18, 4518010), (19, 4280220), (20, 4066209), (21, 3872580), (28, 2904435), (30, 2710806), (35, 2323548), (36, 2259005), (38, 2140110), (42, 1936290), (43, 1891260), (45, 1807204), (57, 1426740), (60, 1355403), (63, 1290860), (70, 1161774), (76, 1070055), (79, 1029420), (84, 968145), (86, 945630), (90, 903602), (95, 856044), (105, 774516), (114, 713370), (126, 645430), (129, 630420), (133, 611460), (140, 580887), (158, 514710), (171, 475580), (172, 472815), (180, 451801), (190, 428022), (210, 387258), (215, 378252), (228, 356685), (237, 343140), (252, 322715), (258, 315210), (266, 305730), (285, 285348), (301, 270180), (315, 258172), (316, 257355), (342, 237790), (380, 214011), (387, 210140), (395, 205884), (399, 203820), (420, 193629), (430, 189126), (474, 171570), (516, 157605), (532, 152865), (553, 147060), (570, 142674), (602, 135090), (630, 129086), (645, 126084), (665, 122292), (684, 118895), (711, 114380), (774, 105070), (790, 102942), (798, 101910), (817, 99540), (855, 95116), (860, 94563), (903, 90060), (948, 85785), (1106, 73530), (1140, 71337), (1185, 68628), (1197, 67940), (1204, 67545), (1260, 64543), (1290, 63042), (1330, 61146), (1422, 57190), (1501, 54180), (1505, 54036), (1548, 52535), (1580, 51471), (1596, 50955), (1634, 49770), (1659, 49020), (1710, 47558), (1806, 45030), (1935, 42028), (1995, 40764), (2212, 36765), (2370, 34314), (2394, 33970), (2451, 33180), (2580, 31521), (2660, 30573), (2709, 30020), (2765, 29412), (2844, 28595), (3002, 27090), (3010, 27018), (3268, 24885), (3318, 24510), (3397, 23940), (3420, 23779), (3555, 22876), (3612, 22515), (3870, 21014), (3990, 20382), (4085, 19908), (4503, 18060), (4515, 18012), (4740, 17157), (4788, 16985), (4902, 16590), (4977, 16340), (5418, 15010), (5530, 14706), (5719, 14220), (5985, 13588), (6004, 13545), (6020, 13509), (6636, 12255), (6794, 11970), (7110, 11438), (7353, 11060), (7505, 10836), (7740, 10507), (7980, 10191), (8170, 9954), (8295, 9804), (9006, 9030)]