81356400

素因数分解:

$2^4\times 3^8\times 5^2\times {\mathrm{31}}^1$

素因数の和:73

約数の個数: 270

約数和(自身を含む): 302630432

約数和(自身を除く): 221274032

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 31, 36, 40, 45, 48, 50, 54, 60, 62, 72, 75, 80, 81, 90, 93, 100, 108, 120, 124, 135, 144, 150, 155, 162, 180, 186, 200, 216, 225, 240, 243, 248, 270, 279, 300, 310, 324, 360, 372, 400, 405, 432, 450, 465, 486, 496, 540, 558, 600, 620, 648, 675, 720, 729, 744, 775, 810, 837, 900, 930, 972, 1080, 1116, 1200, 1215, 1240, 1296, 1350, 1395, 1458, 1488, 1550, 1620, 1674, 1800, 1860, 1944, 2025, 2160, 2187, 2232, 2325, 2430, 2480, 2511, 2700, 2790, 2916, 3100, 3240, 3348, 3600, 3645, 3720, 3888, 4050, 4185, 4374, 4464, 4650, 4860, 5022, 5400, 5580, 5832, 6075, 6200, 6480, 6561, 6696, 6975, 7290, 7440, 7533, 8100, 8370, 8748, 9300, 9720, 10044, 10800, 10935, 11160, 11664, 12150, 12400, 12555, 13122, 13392, 13950, 14580, 15066, 16200, 16740, 17496, 18225, 18600, 19440, 20088, 20925, 21870, 22320, 22599, 24300, 25110, 26244, 27900, 29160, 30132, 32400, 32805, 33480, 34992, 36450, 37200, 37665, 40176, 41850, 43740, 45198, 48600, 50220, 52488, 54675, 55800, 58320, 60264, 62775, 65610, 66960, 67797, 72900, 75330, 83700, 87480, 90396, 97200, 100440, 104976, 109350, 111600, 112995, 120528, 125550, 131220, 135594, 145800, 150660, 164025, 167400, 174960, 180792, 188325, 200880, 203391, 218700, 225990, 251100, 262440, 271188, 291600, 301320, 328050, 334800, 338985, 361584, 376650, 406782, 437400, 451980, 502200, 524880, 542376, 564975, 602640, 656100, 677970, 753300, 813564, 874800, 903960, 1004400, 1016955, 1084752, 1129950, 1312200, 1355940, 1506600, 1627128, 1694925, 1807920, 2033910, 2259900, 2624400, 2711880, 3013200, 3254256, 3389850, 4067820, 4519800, 5084775, 5423760, 6779700, 8135640, 9039600, 10169550, 13559400, 16271280, 20339100, 27118800, 40678200, 81356400]

約数ペア:

[(1, 81356400), (2, 40678200), (3, 27118800), (4, 20339100), (5, 16271280), (6, 13559400), (8, 10169550), (9, 9039600), (10, 8135640), (12, 6779700), (15, 5423760), (16, 5084775), (18, 4519800), (20, 4067820), (24, 3389850), (25, 3254256), (27, 3013200), (30, 2711880), (31, 2624400), (36, 2259900), (40, 2033910), (45, 1807920), (48, 1694925), (50, 1627128), (54, 1506600), (60, 1355940), (62, 1312200), (72, 1129950), (75, 1084752), (80, 1016955), (81, 1004400), (90, 903960), (93, 874800), (100, 813564), (108, 753300), (120, 677970), (124, 656100), (135, 602640), (144, 564975), (150, 542376), (155, 524880), (162, 502200), (180, 451980), (186, 437400), (200, 406782), (216, 376650), (225, 361584), (240, 338985), (243, 334800), (248, 328050), (270, 301320), (279, 291600), (300, 271188), (310, 262440), (324, 251100), (360, 225990), (372, 218700), (400, 203391), (405, 200880), (432, 188325), (450, 180792), (465, 174960), (486, 167400), (496, 164025), (540, 150660), (558, 145800), (600, 135594), (620, 131220), (648, 125550), (675, 120528), (720, 112995), (729, 111600), (744, 109350), (775, 104976), (810, 100440), (837, 97200), (900, 90396), (930, 87480), (972, 83700), (1080, 75330), (1116, 72900), (1200, 67797), (1215, 66960), (1240, 65610), (1296, 62775), (1350, 60264), (1395, 58320), (1458, 55800), (1488, 54675), (1550, 52488), (1620, 50220), (1674, 48600), (1800, 45198), (1860, 43740), (1944, 41850), (2025, 40176), (2160, 37665), (2187, 37200), (2232, 36450), (2325, 34992), (2430, 33480), (2480, 32805), (2511, 32400), (2700, 30132), (2790, 29160), (2916, 27900), (3100, 26244), (3240, 25110), (3348, 24300), (3600, 22599), (3645, 22320), (3720, 21870), (3888, 20925), (4050, 20088), (4185, 19440), (4374, 18600), (4464, 18225), (4650, 17496), (4860, 16740), (5022, 16200), (5400, 15066), (5580, 14580), (5832, 13950), (6075, 13392), (6200, 13122), (6480, 12555), (6561, 12400), (6696, 12150), (6975, 11664), (7290, 11160), (7440, 10935), (7533, 10800), (8100, 10044), (8370, 9720), (8748, 9300)]