261325440

素因数分解:

$2^7\times 3^4\times 5^1\times {\mathrm{71}}^2$

素因数の和:173

約数の個数: 240

約数和(自身を含む): 946569690

約数和(自身を除く): 685244250

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, 71, 72, 80, 81, 90, 96, 108, 120, 128, 135, 142, 144, 160, 162, 180, 192, 213, 216, 240, 270, 284, 288, 320, 324, 355, 360, 384, 405, 426, 432, 480, 540, 568, 576, 639, 640, 648, 710, 720, 810, 852, 864, 960, 1065, 1080, 1136, 1152, 1278, 1296, 1420, 1440, 1620, 1704, 1728, 1917, 1920, 2130, 2160, 2272, 2556, 2592, 2840, 2880, 3195, 3240, 3408, 3456, 3834, 4260, 4320, 4544, 5041, 5112, 5184, 5680, 5751, 5760, 6390, 6480, 6816, 7668, 8520, 8640, 9088, 9585, 10082, 10224, 10368, 11360, 11502, 12780, 12960, 13632, 15123, 15336, 17040, 17280, 19170, 20164, 20448, 22720, 23004, 25205, 25560, 25920, 27264, 28755, 30246, 30672, 34080, 38340, 40328, 40896, 45369, 45440, 46008, 50410, 51120, 51840, 57510, 60492, 61344, 68160, 75615, 76680, 80656, 81792, 90738, 92016, 100820, 102240, 115020, 120984, 122688, 136107, 136320, 151230, 153360, 161312, 181476, 184032, 201640, 204480, 226845, 230040, 241968, 245376, 272214, 302460, 306720, 322624, 362952, 368064, 403280, 408321, 408960, 453690, 460080, 483936, 544428, 604920, 613440, 645248, 680535, 725904, 736128, 806560, 816642, 907380, 920160, 967872, 1088856, 1209840, 1226880, 1361070, 1451808, 1613120, 1633284, 1814760, 1840320, 1935744, 2041605, 2177712, 2419680, 2722140, 2903616, 3226240, 3266568, 3629520, 3680640, 4083210, 4355424, 4839360, 5444280, 5807232, 6533136, 7259040, 8166420, 8710848, 9678720, 10888560, 13066272, 14518080, 16332840, 17421696, 21777120, 26132544, 29036160, 32665680, 43554240, 52265088, 65331360, 87108480, 130662720, 261325440]

約数ペア:

[(1, 261325440), (2, 130662720), (3, 87108480), (4, 65331360), (5, 52265088), (6, 43554240), (8, 32665680), (9, 29036160), (10, 26132544), (12, 21777120), (15, 17421696), (16, 16332840), (18, 14518080), (20, 13066272), (24, 10888560), (27, 9678720), (30, 8710848), (32, 8166420), (36, 7259040), (40, 6533136), (45, 5807232), (48, 5444280), (54, 4839360), (60, 4355424), (64, 4083210), (71, 3680640), (72, 3629520), (80, 3266568), (81, 3226240), (90, 2903616), (96, 2722140), (108, 2419680), (120, 2177712), (128, 2041605), (135, 1935744), (142, 1840320), (144, 1814760), (160, 1633284), (162, 1613120), (180, 1451808), (192, 1361070), (213, 1226880), (216, 1209840), (240, 1088856), (270, 967872), (284, 920160), (288, 907380), (320, 816642), (324, 806560), (355, 736128), (360, 725904), (384, 680535), (405, 645248), (426, 613440), (432, 604920), (480, 544428), (540, 483936), (568, 460080), (576, 453690), (639, 408960), (640, 408321), (648, 403280), (710, 368064), (720, 362952), (810, 322624), (852, 306720), (864, 302460), (960, 272214), (1065, 245376), (1080, 241968), (1136, 230040), (1152, 226845), (1278, 204480), (1296, 201640), (1420, 184032), (1440, 181476), (1620, 161312), (1704, 153360), (1728, 151230), (1917, 136320), (1920, 136107), (2130, 122688), (2160, 120984), (2272, 115020), (2556, 102240), (2592, 100820), (2840, 92016), (2880, 90738), (3195, 81792), (3240, 80656), (3408, 76680), (3456, 75615), (3834, 68160), (4260, 61344), (4320, 60492), (4544, 57510), (5041, 51840), (5112, 51120), (5184, 50410), (5680, 46008), (5751, 45440), (5760, 45369), (6390, 40896), (6480, 40328), (6816, 38340), (7668, 34080), (8520, 30672), (8640, 30246), (9088, 28755), (9585, 27264), (10082, 25920), (10224, 25560), (10368, 25205), (11360, 23004), (11502, 22720), (12780, 20448), (12960, 20164), (13632, 19170), (15123, 17280), (15336, 17040)]