204495840

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{509}}^1$

素因数の和:567

約数の個数: 240

約数和(自身を含む): 746444160

約数和(自身を除く): 541948320

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, 509, 540, 558, 620, 648, 720, 744, 810, 837, 864, 930, 992, 1018, 1080, 1116, 1240, 1296, 1395, 1440, 1488, 1527, 1620, 1674, 1860, 2036, 2160, 2232, 2480, 2511, 2545, 2592, 2790, 2976, 3054, 3240, 3348, 3720, 4072, 4185, 4320, 4464, 4581, 4960, 5022, 5090, 5580, 6108, 6480, 6696, 7440, 7635, 8144, 8370, 8928, 9162, 10044, 10180, 11160, 12216, 12555, 12960, 13392, 13743, 14880, 15270, 15779, 16288, 16740, 18324, 20088, 20360, 22320, 22905, 24432, 25110, 26784, 27486, 30540, 31558, 33480, 36648, 40176, 40720, 41229, 44640, 45810, 47337, 48864, 50220, 54972, 61080, 63116, 66960, 68715, 73296, 78895, 80352, 81440, 82458, 91620, 94674, 100440, 109944, 122160, 126232, 133920, 137430, 142011, 146592, 157790, 164916, 183240, 189348, 200880, 206145, 219888, 236685, 244320, 252464, 274860, 284022, 315580, 329832, 366480, 378696, 401760, 412290, 426033, 439776, 473370, 504928, 549720, 568044, 631160, 659664, 710055, 732960, 757392, 824580, 852066, 946740, 1099440, 1136088, 1262320, 1278099, 1319328, 1420110, 1514784, 1649160, 1704132, 1893480, 2130165, 2198880, 2272176, 2524640, 2556198, 2840220, 3298320, 3408264, 3786960, 4260330, 4544352, 5112396, 5680440, 6390495, 6596640, 6816528, 7573920, 8520660, 10224792, 11360880, 12780990, 13633056, 17041320, 20449584, 22721760, 25561980, 34082640, 40899168, 51123960, 68165280, 102247920, 204495840]

約数ペア:

[(1, 204495840), (2, 102247920), (3, 68165280), (4, 51123960), (5, 40899168), (6, 34082640), (8, 25561980), (9, 22721760), (10, 20449584), (12, 17041320), (15, 13633056), (16, 12780990), (18, 11360880), (20, 10224792), (24, 8520660), (27, 7573920), (30, 6816528), (31, 6596640), (32, 6390495), (36, 5680440), (40, 5112396), (45, 4544352), (48, 4260330), (54, 3786960), (60, 3408264), (62, 3298320), (72, 2840220), (80, 2556198), (81, 2524640), (90, 2272176), (93, 2198880), (96, 2130165), (108, 1893480), (120, 1704132), (124, 1649160), (135, 1514784), (144, 1420110), (155, 1319328), (160, 1278099), (162, 1262320), (180, 1136088), (186, 1099440), (216, 946740), (240, 852066), (248, 824580), (270, 757392), (279, 732960), (288, 710055), (310, 659664), (324, 631160), (360, 568044), (372, 549720), (405, 504928), (432, 473370), (465, 439776), (480, 426033), (496, 412290), (509, 401760), (540, 378696), (558, 366480), (620, 329832), (648, 315580), (720, 284022), (744, 274860), (810, 252464), (837, 244320), (864, 236685), (930, 219888), (992, 206145), (1018, 200880), (1080, 189348), (1116, 183240), (1240, 164916), (1296, 157790), (1395, 146592), (1440, 142011), (1488, 137430), (1527, 133920), (1620, 126232), (1674, 122160), (1860, 109944), (2036, 100440), (2160, 94674), (2232, 91620), (2480, 82458), (2511, 81440), (2545, 80352), (2592, 78895), (2790, 73296), (2976, 68715), (3054, 66960), (3240, 63116), (3348, 61080), (3720, 54972), (4072, 50220), (4185, 48864), (4320, 47337), (4464, 45810), (4581, 44640), (4960, 41229), (5022, 40720), (5090, 40176), (5580, 36648), (6108, 33480), (6480, 31558), (6696, 30540), (7440, 27486), (7635, 26784), (8144, 25110), (8370, 24432), (8928, 22905), (9162, 22320), (10044, 20360), (10180, 20088), (11160, 18324), (12216, 16740), (12555, 16288), (12960, 15779), (13392, 15270), (13743, 14880)]