81267480

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{271}}^1$

素因数の和:319

約数の個数: 288

約数和(自身を含む): 326514240

約数和(自身を除く): 245246760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 17, 18, 20, 21, 24, 28, 30, 34, 35, 36, 40, 42, 45, 49, 51, 56, 60, 63, 68, 70, 72, 84, 85, 90, 98, 102, 105, 119, 120, 126, 136, 140, 147, 153, 168, 170, 180, 196, 204, 210, 238, 245, 252, 255, 271, 280, 294, 306, 315, 340, 357, 360, 392, 408, 420, 441, 476, 490, 504, 510, 542, 588, 595, 612, 630, 680, 714, 735, 765, 813, 833, 840, 882, 952, 980, 1020, 1071, 1084, 1176, 1190, 1224, 1260, 1355, 1428, 1470, 1530, 1626, 1666, 1764, 1785, 1897, 1960, 2040, 2142, 2168, 2205, 2380, 2439, 2499, 2520, 2710, 2856, 2940, 3060, 3252, 3332, 3528, 3570, 3794, 4065, 4165, 4284, 4410, 4607, 4760, 4878, 4998, 5355, 5420, 5691, 5880, 6120, 6504, 6664, 7140, 7497, 7588, 8130, 8330, 8568, 8820, 9214, 9485, 9756, 9996, 10710, 10840, 11382, 12195, 12495, 13279, 13821, 14280, 14994, 15176, 16260, 16660, 17073, 17640, 18428, 18970, 19512, 19992, 21420, 22764, 23035, 24390, 24990, 26558, 27642, 28455, 29988, 32249, 32520, 33320, 34146, 36856, 37485, 37940, 39837, 41463, 42840, 45528, 46070, 48780, 49980, 53116, 55284, 56910, 59976, 64498, 66395, 68292, 69105, 74970, 75880, 79674, 82926, 85365, 92140, 96747, 97560, 99960, 106232, 110568, 113820, 119511, 128996, 132790, 136584, 138210, 149940, 159348, 161245, 165852, 170730, 184280, 193494, 199185, 207315, 225743, 227640, 239022, 257992, 265580, 276420, 290241, 299880, 318696, 322490, 331704, 341460, 386988, 398370, 414630, 451486, 478044, 483735, 531160, 552840, 580482, 597555, 644980, 677229, 682920, 773976, 796740, 829260, 902972, 956088, 967470, 1128715, 1160964, 1195110, 1289960, 1354458, 1451205, 1593480, 1658520, 1805944, 1934940, 2031687, 2257430, 2321928, 2390220, 2708916, 2902410, 3386145, 3869880, 4063374, 4514860, 4780440, 5417832, 5804820, 6772290, 8126748, 9029720, 10158435, 11609640, 13544580, 16253496, 20316870, 27089160, 40633740, 81267480]

約数ペア:

[(1, 81267480), (2, 40633740), (3, 27089160), (4, 20316870), (5, 16253496), (6, 13544580), (7, 11609640), (8, 10158435), (9, 9029720), (10, 8126748), (12, 6772290), (14, 5804820), (15, 5417832), (17, 4780440), (18, 4514860), (20, 4063374), (21, 3869880), (24, 3386145), (28, 2902410), (30, 2708916), (34, 2390220), (35, 2321928), (36, 2257430), (40, 2031687), (42, 1934940), (45, 1805944), (49, 1658520), (51, 1593480), (56, 1451205), (60, 1354458), (63, 1289960), (68, 1195110), (70, 1160964), (72, 1128715), (84, 967470), (85, 956088), (90, 902972), (98, 829260), (102, 796740), (105, 773976), (119, 682920), (120, 677229), (126, 644980), (136, 597555), (140, 580482), (147, 552840), (153, 531160), (168, 483735), (170, 478044), (180, 451486), (196, 414630), (204, 398370), (210, 386988), (238, 341460), (245, 331704), (252, 322490), (255, 318696), (271, 299880), (280, 290241), (294, 276420), (306, 265580), (315, 257992), (340, 239022), (357, 227640), (360, 225743), (392, 207315), (408, 199185), (420, 193494), (441, 184280), (476, 170730), (490, 165852), (504, 161245), (510, 159348), (542, 149940), (588, 138210), (595, 136584), (612, 132790), (630, 128996), (680, 119511), (714, 113820), (735, 110568), (765, 106232), (813, 99960), (833, 97560), (840, 96747), (882, 92140), (952, 85365), (980, 82926), (1020, 79674), (1071, 75880), (1084, 74970), (1176, 69105), (1190, 68292), (1224, 66395), (1260, 64498), (1355, 59976), (1428, 56910), (1470, 55284), (1530, 53116), (1626, 49980), (1666, 48780), (1764, 46070), (1785, 45528), (1897, 42840), (1960, 41463), (2040, 39837), (2142, 37940), (2168, 37485), (2205, 36856), (2380, 34146), (2439, 33320), (2499, 32520), (2520, 32249), (2710, 29988), (2856, 28455), (2940, 27642), (3060, 26558), (3252, 24990), (3332, 24390), (3528, 23035), (3570, 22764), (3794, 21420), (4065, 19992), (4165, 19512), (4284, 18970), (4410, 18428), (4607, 17640), (4760, 17073), (4878, 16660), (4998, 16260), (5355, 15176), (5420, 14994), (5691, 14280), (5880, 13821), (6120, 13279), (6504, 12495), (6664, 12195), (7140, 11382), (7497, 10840), (7588, 10710), (8130, 9996), (8330, 9756), (8568, 9485), (8820, 9214)]