398144160

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{991}}^1$

素因数の和:1049

約数の個数: 240

約数和(自身を含む): 1451907072

約数和(自身を除く): 1053762912

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 31, 32, 36, 40, 45, 48, 54, 60, 62, 72, 80, 81, 90, 93, 96, 108, 120, 124, 135, 144, 155, 160, 162, 180, 186, 216, 240, 248, 270, 279, 288, 310, 324, 360, 372, 405, 432, 465, 480, 496, 540, 558, 620, 648, 720, 744, 810, 837, 864, 930, 991, 992, 1080, 1116, 1240, 1296, 1395, 1440, 1488, 1620, 1674, 1860, 1982, 2160, 2232, 2480, 2511, 2592, 2790, 2973, 2976, 3240, 3348, 3720, 3964, 4185, 4320, 4464, 4955, 4960, 5022, 5580, 5946, 6480, 6696, 7440, 7928, 8370, 8919, 8928, 9910, 10044, 11160, 11892, 12555, 12960, 13392, 14865, 14880, 15856, 16740, 17838, 19820, 20088, 22320, 23784, 25110, 26757, 26784, 29730, 30721, 31712, 33480, 35676, 39640, 40176, 44595, 44640, 47568, 50220, 53514, 59460, 61442, 66960, 71352, 79280, 80271, 80352, 89190, 92163, 95136, 100440, 107028, 118920, 122884, 133785, 133920, 142704, 153605, 158560, 160542, 178380, 184326, 200880, 214056, 237840, 245768, 267570, 276489, 285408, 307210, 321084, 356760, 368652, 401355, 401760, 428112, 460815, 475680, 491536, 535140, 552978, 614420, 642168, 713520, 737304, 802710, 829467, 856224, 921630, 983072, 1070280, 1105956, 1228840, 1284336, 1382445, 1427040, 1474608, 1605420, 1658934, 1843260, 2140560, 2211912, 2457680, 2488401, 2568672, 2764890, 2949216, 3210840, 3317868, 3686520, 4147335, 4281120, 4423824, 4915360, 4976802, 5529780, 6421680, 6635736, 7373040, 8294670, 8847648, 9953604, 11059560, 12442005, 12843360, 13271472, 14746080, 16589340, 19907208, 22119120, 24884010, 26542944, 33178680, 39814416, 44238240, 49768020, 66357360, 79628832, 99536040, 132714720, 199072080, 398144160]

約数ペア:

[(1, 398144160), (2, 199072080), (3, 132714720), (4, 99536040), (5, 79628832), (6, 66357360), (8, 49768020), (9, 44238240), (10, 39814416), (12, 33178680), (15, 26542944), (16, 24884010), (18, 22119120), (20, 19907208), (24, 16589340), (27, 14746080), (30, 13271472), (31, 12843360), (32, 12442005), (36, 11059560), (40, 9953604), (45, 8847648), (48, 8294670), (54, 7373040), (60, 6635736), (62, 6421680), (72, 5529780), (80, 4976802), (81, 4915360), (90, 4423824), (93, 4281120), (96, 4147335), (108, 3686520), (120, 3317868), (124, 3210840), (135, 2949216), (144, 2764890), (155, 2568672), (160, 2488401), (162, 2457680), (180, 2211912), (186, 2140560), (216, 1843260), (240, 1658934), (248, 1605420), (270, 1474608), (279, 1427040), (288, 1382445), (310, 1284336), (324, 1228840), (360, 1105956), (372, 1070280), (405, 983072), (432, 921630), (465, 856224), (480, 829467), (496, 802710), (540, 737304), (558, 713520), (620, 642168), (648, 614420), (720, 552978), (744, 535140), (810, 491536), (837, 475680), (864, 460815), (930, 428112), (991, 401760), (992, 401355), (1080, 368652), (1116, 356760), (1240, 321084), (1296, 307210), (1395, 285408), (1440, 276489), (1488, 267570), (1620, 245768), (1674, 237840), (1860, 214056), (1982, 200880), (2160, 184326), (2232, 178380), (2480, 160542), (2511, 158560), (2592, 153605), (2790, 142704), (2973, 133920), (2976, 133785), (3240, 122884), (3348, 118920), (3720, 107028), (3964, 100440), (4185, 95136), (4320, 92163), (4464, 89190), (4955, 80352), (4960, 80271), (5022, 79280), (5580, 71352), (5946, 66960), (6480, 61442), (6696, 59460), (7440, 53514), (7928, 50220), (8370, 47568), (8919, 44640), (8928, 44595), (9910, 40176), (10044, 39640), (11160, 35676), (11892, 33480), (12555, 31712), (12960, 30721), (13392, 29730), (14865, 26784), (14880, 26757), (15856, 25110), (16740, 23784), (17838, 22320), (19820, 20088)]