261791280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{317}}^1$

素因数の和:404

約数の個数: 240

約数和(自身を含む): 935011584

約数和(自身を除く): 673220304

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 36, 37, 40, 45, 48, 60, 62, 72, 74, 80, 90, 93, 111, 120, 124, 144, 148, 155, 180, 185, 186, 222, 240, 248, 279, 296, 310, 317, 333, 360, 370, 372, 444, 465, 496, 555, 558, 592, 620, 634, 666, 720, 740, 744, 888, 930, 951, 1110, 1116, 1147, 1240, 1268, 1332, 1395, 1480, 1488, 1585, 1665, 1776, 1860, 1902, 2220, 2232, 2294, 2480, 2536, 2664, 2790, 2853, 2960, 3170, 3330, 3441, 3720, 3804, 4440, 4464, 4588, 4755, 5072, 5328, 5580, 5706, 5735, 6340, 6660, 6882, 7440, 7608, 8880, 9176, 9510, 9827, 10323, 11160, 11412, 11470, 11729, 12680, 13320, 13764, 14265, 15216, 17205, 18352, 19020, 19654, 20646, 22320, 22824, 22940, 23458, 25360, 26640, 27528, 28530, 29481, 34410, 35187, 38040, 39308, 41292, 45648, 45880, 46916, 49135, 51615, 55056, 57060, 58645, 58962, 68820, 70374, 76080, 78616, 82584, 88443, 91760, 93832, 98270, 103230, 105561, 114120, 117290, 117924, 137640, 140748, 147405, 157232, 165168, 175935, 176886, 187664, 196540, 206460, 211122, 228240, 234580, 235848, 275280, 281496, 294810, 351870, 353772, 363599, 393080, 412920, 422244, 442215, 469160, 471696, 527805, 562992, 589620, 703740, 707544, 727198, 786160, 825840, 844488, 884430, 938320, 1055610, 1090797, 1179240, 1407480, 1415088, 1454396, 1688976, 1768860, 1817995, 2111220, 2181594, 2358480, 2814960, 2908792, 3272391, 3537720, 3635990, 4222440, 4363188, 5453985, 5817584, 6544782, 7075440, 7271980, 8444880, 8726376, 10907970, 13089564, 14543960, 16361955, 17452752, 21815940, 26179128, 29087920, 32723910, 43631880, 52358256, 65447820, 87263760, 130895640, 261791280]

約数ペア:

[(1, 261791280), (2, 130895640), (3, 87263760), (4, 65447820), (5, 52358256), (6, 43631880), (8, 32723910), (9, 29087920), (10, 26179128), (12, 21815940), (15, 17452752), (16, 16361955), (18, 14543960), (20, 13089564), (24, 10907970), (30, 8726376), (31, 8444880), (36, 7271980), (37, 7075440), (40, 6544782), (45, 5817584), (48, 5453985), (60, 4363188), (62, 4222440), (72, 3635990), (74, 3537720), (80, 3272391), (90, 2908792), (93, 2814960), (111, 2358480), (120, 2181594), (124, 2111220), (144, 1817995), (148, 1768860), (155, 1688976), (180, 1454396), (185, 1415088), (186, 1407480), (222, 1179240), (240, 1090797), (248, 1055610), (279, 938320), (296, 884430), (310, 844488), (317, 825840), (333, 786160), (360, 727198), (370, 707544), (372, 703740), (444, 589620), (465, 562992), (496, 527805), (555, 471696), (558, 469160), (592, 442215), (620, 422244), (634, 412920), (666, 393080), (720, 363599), (740, 353772), (744, 351870), (888, 294810), (930, 281496), (951, 275280), (1110, 235848), (1116, 234580), (1147, 228240), (1240, 211122), (1268, 206460), (1332, 196540), (1395, 187664), (1480, 176886), (1488, 175935), (1585, 165168), (1665, 157232), (1776, 147405), (1860, 140748), (1902, 137640), (2220, 117924), (2232, 117290), (2294, 114120), (2480, 105561), (2536, 103230), (2664, 98270), (2790, 93832), (2853, 91760), (2960, 88443), (3170, 82584), (3330, 78616), (3441, 76080), (3720, 70374), (3804, 68820), (4440, 58962), (4464, 58645), (4588, 57060), (4755, 55056), (5072, 51615), (5328, 49135), (5580, 46916), (5706, 45880), (5735, 45648), (6340, 41292), (6660, 39308), (6882, 38040), (7440, 35187), (7608, 34410), (8880, 29481), (9176, 28530), (9510, 27528), (9827, 26640), (10323, 25360), (11160, 23458), (11412, 22940), (11470, 22824), (11729, 22320), (12680, 20646), (13320, 19654), (13764, 19020), (14265, 18352), (15216, 17205)]