81339660

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:205

約数の個数: 192

約数和(自身を含む): 269660160

約数和(自身を除く): 188320500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 43, 45, 54, 60, 62, 86, 90, 93, 108, 113, 124, 129, 135, 155, 172, 180, 186, 215, 226, 258, 270, 279, 310, 339, 372, 387, 430, 452, 465, 516, 540, 558, 565, 620, 645, 678, 774, 837, 860, 930, 1017, 1116, 1130, 1161, 1290, 1333, 1356, 1395, 1548, 1674, 1695, 1860, 1935, 2034, 2260, 2322, 2580, 2666, 2790, 3051, 3348, 3390, 3503, 3870, 3999, 4068, 4185, 4644, 4859, 5085, 5332, 5580, 5805, 6102, 6665, 6780, 7006, 7740, 7998, 8370, 9718, 10170, 10509, 11610, 11997, 12204, 13330, 14012, 14577, 15255, 15996, 16740, 17515, 19436, 19995, 20340, 21018, 23220, 23994, 24295, 26660, 29154, 30510, 31527, 35030, 35991, 39990, 42036, 43731, 47988, 48590, 52545, 58308, 59985, 61020, 63054, 70060, 71982, 72885, 79980, 87462, 94581, 97180, 105090, 119970, 126108, 131193, 143964, 145770, 150629, 157635, 174924, 179955, 189162, 210180, 218655, 239940, 262386, 291540, 301258, 315270, 359910, 378324, 437310, 451887, 472905, 524772, 602516, 630540, 655965, 719820, 753145, 874620, 903774, 945810, 1311930, 1355661, 1506290, 1807548, 1891620, 2259435, 2623860, 2711322, 3012580, 4066983, 4518870, 5422644, 6778305, 8133966, 9037740, 13556610, 16267932, 20334915, 27113220, 40669830, 81339660]

約数ペア:

[(1, 81339660), (2, 40669830), (3, 27113220), (4, 20334915), (5, 16267932), (6, 13556610), (9, 9037740), (10, 8133966), (12, 6778305), (15, 5422644), (18, 4518870), (20, 4066983), (27, 3012580), (30, 2711322), (31, 2623860), (36, 2259435), (43, 1891620), (45, 1807548), (54, 1506290), (60, 1355661), (62, 1311930), (86, 945810), (90, 903774), (93, 874620), (108, 753145), (113, 719820), (124, 655965), (129, 630540), (135, 602516), (155, 524772), (172, 472905), (180, 451887), (186, 437310), (215, 378324), (226, 359910), (258, 315270), (270, 301258), (279, 291540), (310, 262386), (339, 239940), (372, 218655), (387, 210180), (430, 189162), (452, 179955), (465, 174924), (516, 157635), (540, 150629), (558, 145770), (565, 143964), (620, 131193), (645, 126108), (678, 119970), (774, 105090), (837, 97180), (860, 94581), (930, 87462), (1017, 79980), (1116, 72885), (1130, 71982), (1161, 70060), (1290, 63054), (1333, 61020), (1356, 59985), (1395, 58308), (1548, 52545), (1674, 48590), (1695, 47988), (1860, 43731), (1935, 42036), (2034, 39990), (2260, 35991), (2322, 35030), (2580, 31527), (2666, 30510), (2790, 29154), (3051, 26660), (3348, 24295), (3390, 23994), (3503, 23220), (3870, 21018), (3999, 20340), (4068, 19995), (4185, 19436), (4644, 17515), (4859, 16740), (5085, 15996), (5332, 15255), (5580, 14577), (5805, 14012), (6102, 13330), (6665, 12204), (6780, 11997), (7006, 11610), (7740, 10509), (7998, 10170), (8370, 9718)]