391616640

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{173}}^1$

素因数の和:332

約数の個数: 256

約数和(自身を含む): 1405641600

約数和(自身を除く): 1014024960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 131, 135, 144, 160, 173, 180, 192, 216, 240, 262, 270, 288, 320, 346, 360, 384, 393, 432, 480, 519, 524, 540, 576, 640, 655, 692, 720, 786, 864, 865, 960, 1038, 1048, 1080, 1152, 1179, 1310, 1384, 1440, 1557, 1572, 1728, 1730, 1920, 1965, 2076, 2096, 2160, 2358, 2595, 2620, 2768, 2880, 3114, 3144, 3456, 3460, 3537, 3930, 4152, 4192, 4320, 4671, 4716, 5190, 5240, 5536, 5760, 5895, 6228, 6288, 6920, 7074, 7785, 7860, 8304, 8384, 8640, 9342, 9432, 10380, 10480, 11072, 11790, 12456, 12576, 13840, 14148, 15570, 15720, 16608, 16768, 17280, 17685, 18684, 18864, 20760, 20960, 22144, 22663, 23355, 23580, 24912, 25152, 27680, 28296, 31140, 31440, 33216, 35370, 37368, 37728, 41520, 41920, 45326, 46710, 47160, 49824, 50304, 55360, 56592, 62280, 62880, 66432, 67989, 70740, 74736, 75456, 83040, 83840, 90652, 93420, 94320, 99648, 110720, 113184, 113315, 124560, 125760, 135978, 141480, 149472, 150912, 166080, 181304, 186840, 188640, 199296, 203967, 226368, 226630, 249120, 251520, 271956, 282960, 298944, 332160, 339945, 362608, 373680, 377280, 407934, 452736, 453260, 498240, 543912, 565920, 597888, 611901, 679890, 725216, 747360, 754560, 815868, 906520, 996480, 1019835, 1087824, 1131840, 1223802, 1359780, 1450432, 1494720, 1631736, 1813040, 2039670, 2175648, 2263680, 2447604, 2719560, 2900864, 2989440, 3059505, 3263472, 3626080, 4079340, 4351296, 4895208, 5439120, 6119010, 6526944, 7252160, 8158680, 8702592, 9790416, 10878240, 12238020, 13053888, 14504320, 16317360, 19580832, 21756480, 24476040, 26107776, 32634720, 39161664, 43512960, 48952080, 65269440, 78323328, 97904160, 130538880, 195808320, 391616640]

約数ペア:

[(1, 391616640), (2, 195808320), (3, 130538880), (4, 97904160), (5, 78323328), (6, 65269440), (8, 48952080), (9, 43512960), (10, 39161664), (12, 32634720), (15, 26107776), (16, 24476040), (18, 21756480), (20, 19580832), (24, 16317360), (27, 14504320), (30, 13053888), (32, 12238020), (36, 10878240), (40, 9790416), (45, 8702592), (48, 8158680), (54, 7252160), (60, 6526944), (64, 6119010), (72, 5439120), (80, 4895208), (90, 4351296), (96, 4079340), (108, 3626080), (120, 3263472), (128, 3059505), (131, 2989440), (135, 2900864), (144, 2719560), (160, 2447604), (173, 2263680), (180, 2175648), (192, 2039670), (216, 1813040), (240, 1631736), (262, 1494720), (270, 1450432), (288, 1359780), (320, 1223802), (346, 1131840), (360, 1087824), (384, 1019835), (393, 996480), (432, 906520), (480, 815868), (519, 754560), (524, 747360), (540, 725216), (576, 679890), (640, 611901), (655, 597888), (692, 565920), (720, 543912), (786, 498240), (864, 453260), (865, 452736), (960, 407934), (1038, 377280), (1048, 373680), (1080, 362608), (1152, 339945), (1179, 332160), (1310, 298944), (1384, 282960), (1440, 271956), (1557, 251520), (1572, 249120), (1728, 226630), (1730, 226368), (1920, 203967), (1965, 199296), (2076, 188640), (2096, 186840), (2160, 181304), (2358, 166080), (2595, 150912), (2620, 149472), (2768, 141480), (2880, 135978), (3114, 125760), (3144, 124560), (3456, 113315), (3460, 113184), (3537, 110720), (3930, 99648), (4152, 94320), (4192, 93420), (4320, 90652), (4671, 83840), (4716, 83040), (5190, 75456), (5240, 74736), (5536, 70740), (5760, 67989), (5895, 66432), (6228, 62880), (6288, 62280), (6920, 56592), (7074, 55360), (7785, 50304), (7860, 49824), (8304, 47160), (8384, 46710), (8640, 45326), (9342, 41920), (9432, 41520), (10380, 37728), (10480, 37368), (11072, 35370), (11790, 33216), (12456, 31440), (12576, 31140), (13840, 28296), (14148, 27680), (15570, 25152), (15720, 24912), (16608, 23580), (16768, 23355), (17280, 22663), (17685, 22144), (18684, 20960), (18864, 20760)]