31245760

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:103

約数の個数: 224

約数和(自身を含む): 97292160

約数和(自身を除く): 66046400

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 29, 32, 35, 37, 40, 52, 56, 58, 64, 65, 70, 74, 80, 91, 104, 112, 116, 130, 140, 145, 148, 160, 182, 185, 203, 208, 224, 232, 259, 260, 280, 290, 296, 320, 364, 370, 377, 406, 416, 448, 455, 464, 481, 518, 520, 560, 580, 592, 728, 740, 754, 812, 832, 910, 928, 962, 1015, 1036, 1040, 1073, 1120, 1160, 1184, 1295, 1456, 1480, 1508, 1624, 1820, 1856, 1885, 1924, 2030, 2072, 2080, 2146, 2240, 2320, 2368, 2405, 2590, 2639, 2912, 2960, 3016, 3248, 3367, 3640, 3770, 3848, 4060, 4144, 4160, 4292, 4640, 4810, 5180, 5278, 5365, 5824, 5920, 6032, 6496, 6734, 7280, 7511, 7540, 7696, 8120, 8288, 8584, 9280, 9620, 10360, 10556, 10730, 11840, 12064, 12992, 13195, 13468, 13949, 14560, 15022, 15080, 15392, 16240, 16576, 16835, 17168, 19240, 20720, 21112, 21460, 24128, 26390, 26936, 27898, 29120, 30044, 30160, 30784, 32480, 33670, 34336, 37555, 38480, 41440, 42224, 42920, 52780, 53872, 55796, 60088, 60320, 64960, 67340, 68672, 69745, 75110, 76960, 82880, 84448, 85840, 97643, 105560, 107744, 111592, 120176, 120640, 134680, 139490, 150220, 153920, 168896, 171680, 195286, 211120, 215488, 223184, 240352, 269360, 278980, 300440, 343360, 390572, 422240, 446368, 480704, 488215, 538720, 557960, 600880, 781144, 844480, 892736, 976430, 1077440, 1115920, 1201760, 1562288, 1952860, 2231840, 2403520, 3124576, 3905720, 4463680, 6249152, 7811440, 15622880, 31245760]

約数ペア:

[(1, 31245760), (2, 15622880), (4, 7811440), (5, 6249152), (7, 4463680), (8, 3905720), (10, 3124576), (13, 2403520), (14, 2231840), (16, 1952860), (20, 1562288), (26, 1201760), (28, 1115920), (29, 1077440), (32, 976430), (35, 892736), (37, 844480), (40, 781144), (52, 600880), (56, 557960), (58, 538720), (64, 488215), (65, 480704), (70, 446368), (74, 422240), (80, 390572), (91, 343360), (104, 300440), (112, 278980), (116, 269360), (130, 240352), (140, 223184), (145, 215488), (148, 211120), (160, 195286), (182, 171680), (185, 168896), (203, 153920), (208, 150220), (224, 139490), (232, 134680), (259, 120640), (260, 120176), (280, 111592), (290, 107744), (296, 105560), (320, 97643), (364, 85840), (370, 84448), (377, 82880), (406, 76960), (416, 75110), (448, 69745), (455, 68672), (464, 67340), (481, 64960), (518, 60320), (520, 60088), (560, 55796), (580, 53872), (592, 52780), (728, 42920), (740, 42224), (754, 41440), (812, 38480), (832, 37555), (910, 34336), (928, 33670), (962, 32480), (1015, 30784), (1036, 30160), (1040, 30044), (1073, 29120), (1120, 27898), (1160, 26936), (1184, 26390), (1295, 24128), (1456, 21460), (1480, 21112), (1508, 20720), (1624, 19240), (1820, 17168), (1856, 16835), (1885, 16576), (1924, 16240), (2030, 15392), (2072, 15080), (2080, 15022), (2146, 14560), (2240, 13949), (2320, 13468), (2368, 13195), (2405, 12992), (2590, 12064), (2639, 11840), (2912, 10730), (2960, 10556), (3016, 10360), (3248, 9620), (3367, 9280), (3640, 8584), (3770, 8288), (3848, 8120), (4060, 7696), (4144, 7540), (4160, 7511), (4292, 7280), (4640, 6734), (4810, 6496), (5180, 6032), (5278, 5920), (5365, 5824)]