20881917720

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{563}}^2$

素因数の和:1207

約数の個数: 192

約数和(自身を含む): 70873365600

約数和(自身を除く): 49991447880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 61, 72, 90, 108, 120, 122, 135, 180, 183, 216, 244, 270, 305, 360, 366, 488, 540, 549, 563, 610, 732, 915, 1080, 1098, 1126, 1220, 1464, 1647, 1689, 1830, 2196, 2252, 2440, 2745, 2815, 3294, 3378, 3660, 4392, 4504, 5067, 5490, 5630, 6588, 6756, 7320, 8235, 8445, 10134, 10980, 11260, 13176, 13512, 15201, 16470, 16890, 20268, 21960, 22520, 25335, 30402, 32940, 33780, 34343, 40536, 50670, 60804, 65880, 67560, 68686, 76005, 101340, 103029, 121608, 137372, 152010, 171715, 202680, 206058, 274744, 304020, 309087, 316969, 343430, 412116, 515145, 608040, 618174, 633938, 686860, 824232, 927261, 950907, 1030290, 1236348, 1267876, 1373720, 1545435, 1584845, 1854522, 1901814, 2060580, 2472696, 2535752, 2852721, 3090870, 3169690, 3709044, 3803628, 4121160, 4636305, 4754535, 5705442, 6181740, 6339380, 7418088, 7607256, 8558163, 9272610, 9509070, 11410884, 12363480, 12678760, 14263605, 17116326, 18545220, 19018140, 19335109, 22821768, 28527210, 34232652, 37090440, 38036280, 38670218, 42790815, 57054420, 58005327, 68465304, 77340436, 85581630, 96675545, 114108840, 116010654, 154680872, 171163260, 174015981, 193351090, 232021308, 290026635, 342326520, 348031962, 386702180, 464042616, 522047943, 580053270, 696063924, 773404360, 870079905, 1044095886, 1160106540, 1392127848, 1740159810, 2088191772, 2320213080, 2610239715, 3480319620, 4176383544, 5220479430, 6960639240, 10440958860, 20881917720]

約数ペア:

[(1, 20881917720), (2, 10440958860), (3, 6960639240), (4, 5220479430), (5, 4176383544), (6, 3480319620), (8, 2610239715), (9, 2320213080), (10, 2088191772), (12, 1740159810), (15, 1392127848), (18, 1160106540), (20, 1044095886), (24, 870079905), (27, 773404360), (30, 696063924), (36, 580053270), (40, 522047943), (45, 464042616), (54, 386702180), (60, 348031962), (61, 342326520), (72, 290026635), (90, 232021308), (108, 193351090), (120, 174015981), (122, 171163260), (135, 154680872), (180, 116010654), (183, 114108840), (216, 96675545), (244, 85581630), (270, 77340436), (305, 68465304), (360, 58005327), (366, 57054420), (488, 42790815), (540, 38670218), (549, 38036280), (563, 37090440), (610, 34232652), (732, 28527210), (915, 22821768), (1080, 19335109), (1098, 19018140), (1126, 18545220), (1220, 17116326), (1464, 14263605), (1647, 12678760), (1689, 12363480), (1830, 11410884), (2196, 9509070), (2252, 9272610), (2440, 8558163), (2745, 7607256), (2815, 7418088), (3294, 6339380), (3378, 6181740), (3660, 5705442), (4392, 4754535), (4504, 4636305), (5067, 4121160), (5490, 3803628), (5630, 3709044), (6588, 3169690), (6756, 3090870), (7320, 2852721), (8235, 2535752), (8445, 2472696), (10134, 2060580), (10980, 1901814), (11260, 1854522), (13176, 1584845), (13512, 1545435), (15201, 1373720), (16470, 1267876), (16890, 1236348), (20268, 1030290), (21960, 950907), (22520, 927261), (25335, 824232), (30402, 686860), (32940, 633938), (33780, 618174), (34343, 608040), (40536, 515145), (50670, 412116), (60804, 343430), (65880, 316969), (67560, 309087), (68686, 304020), (76005, 274744), (101340, 206058), (103029, 202680), (121608, 171715), (137372, 152010)]