81885440

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:97

約数の個数: 288

約数和(自身を含む): 260977920

約数和(自身を除く): 179092480

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 19, 20, 26, 28, 32, 35, 37, 38, 40, 52, 56, 64, 65, 70, 74, 76, 80, 91, 95, 104, 112, 128, 130, 133, 140, 148, 152, 160, 182, 185, 190, 208, 224, 247, 256, 259, 260, 266, 280, 296, 304, 320, 364, 370, 380, 416, 448, 455, 481, 494, 518, 520, 532, 560, 592, 608, 640, 665, 703, 728, 740, 760, 832, 896, 910, 962, 988, 1036, 1040, 1064, 1120, 1184, 1216, 1235, 1280, 1295, 1330, 1406, 1456, 1480, 1520, 1664, 1729, 1792, 1820, 1924, 1976, 2072, 2080, 2128, 2240, 2368, 2405, 2432, 2470, 2590, 2660, 2812, 2912, 2960, 3040, 3328, 3367, 3458, 3515, 3640, 3848, 3952, 4144, 4160, 4256, 4480, 4736, 4810, 4864, 4921, 4940, 5180, 5320, 5624, 5824, 5920, 6080, 6734, 6916, 7030, 7280, 7696, 7904, 8288, 8320, 8512, 8645, 8960, 9139, 9472, 9620, 9842, 9880, 10360, 10640, 11248, 11648, 11840, 12160, 13468, 13832, 14060, 14560, 15392, 15808, 16576, 16640, 16835, 17024, 17290, 18278, 19240, 19684, 19760, 20720, 21280, 22496, 23296, 23680, 24320, 24605, 26936, 27664, 28120, 29120, 30784, 31616, 33152, 33670, 34048, 34580, 36556, 38480, 39368, 39520, 41440, 42560, 44992, 45695, 47360, 49210, 53872, 55328, 56240, 58240, 61568, 63232, 63973, 66304, 67340, 69160, 73112, 76960, 78736, 79040, 82880, 85120, 89984, 91390, 98420, 107744, 110656, 112480, 116480, 123136, 127946, 134680, 138320, 146224, 153920, 157472, 158080, 165760, 170240, 179968, 182780, 196840, 215488, 221312, 224960, 255892, 269360, 276640, 292448, 307840, 314944, 316160, 319865, 331520, 365560, 393680, 430976, 442624, 449920, 511784, 538720, 553280, 584896, 615680, 629888, 639730, 731120, 787360, 861952, 899840, 1023568, 1077440, 1106560, 1169792, 1259776, 1279460, 1462240, 1574720, 2047136, 2154880, 2213120, 2339584, 2558920, 2924480, 3149440, 4094272, 4309760, 5117840, 5848960, 6298880, 8188544, 10235680, 11697920, 16377088, 20471360, 40942720, 81885440]

約数ペア:

[(1, 81885440), (2, 40942720), (4, 20471360), (5, 16377088), (7, 11697920), (8, 10235680), (10, 8188544), (13, 6298880), (14, 5848960), (16, 5117840), (19, 4309760), (20, 4094272), (26, 3149440), (28, 2924480), (32, 2558920), (35, 2339584), (37, 2213120), (38, 2154880), (40, 2047136), (52, 1574720), (56, 1462240), (64, 1279460), (65, 1259776), (70, 1169792), (74, 1106560), (76, 1077440), (80, 1023568), (91, 899840), (95, 861952), (104, 787360), (112, 731120), (128, 639730), (130, 629888), (133, 615680), (140, 584896), (148, 553280), (152, 538720), (160, 511784), (182, 449920), (185, 442624), (190, 430976), (208, 393680), (224, 365560), (247, 331520), (256, 319865), (259, 316160), (260, 314944), (266, 307840), (280, 292448), (296, 276640), (304, 269360), (320, 255892), (364, 224960), (370, 221312), (380, 215488), (416, 196840), (448, 182780), (455, 179968), (481, 170240), (494, 165760), (518, 158080), (520, 157472), (532, 153920), (560, 146224), (592, 138320), (608, 134680), (640, 127946), (665, 123136), (703, 116480), (728, 112480), (740, 110656), (760, 107744), (832, 98420), (896, 91390), (910, 89984), (962, 85120), (988, 82880), (1036, 79040), (1040, 78736), (1064, 76960), (1120, 73112), (1184, 69160), (1216, 67340), (1235, 66304), (1280, 63973), (1295, 63232), (1330, 61568), (1406, 58240), (1456, 56240), (1480, 55328), (1520, 53872), (1664, 49210), (1729, 47360), (1792, 45695), (1820, 44992), (1924, 42560), (1976, 41440), (2072, 39520), (2080, 39368), (2128, 38480), (2240, 36556), (2368, 34580), (2405, 34048), (2432, 33670), (2470, 33152), (2590, 31616), (2660, 30784), (2812, 29120), (2912, 28120), (2960, 27664), (3040, 26936), (3328, 24605), (3367, 24320), (3458, 23680), (3515, 23296), (3640, 22496), (3848, 21280), (3952, 20720), (4144, 19760), (4160, 19684), (4256, 19240), (4480, 18278), (4736, 17290), (4810, 17024), (4864, 16835), (4921, 16640), (4940, 16576), (5180, 15808), (5320, 15392), (5624, 14560), (5824, 14060), (5920, 13832), (6080, 13468), (6734, 12160), (6916, 11840), (7030, 11648), (7280, 11248), (7696, 10640), (7904, 10360), (8288, 9880), (8320, 9842), (8512, 9620), (8645, 9472), (8960, 9139)]