491741280

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1997}}^1$

素因数の和:2043

約数の個数: 240

約数和(自身を含む): 1827690480

約数和(自身を除く): 1335949200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 32, 36, 38, 40, 45, 48, 54, 57, 60, 72, 76, 80, 81, 90, 95, 96, 108, 114, 120, 135, 144, 152, 160, 162, 171, 180, 190, 216, 228, 240, 270, 285, 288, 304, 324, 342, 360, 380, 405, 432, 456, 480, 513, 540, 570, 608, 648, 684, 720, 760, 810, 855, 864, 912, 1026, 1080, 1140, 1296, 1368, 1440, 1520, 1539, 1620, 1710, 1824, 1997, 2052, 2160, 2280, 2565, 2592, 2736, 3040, 3078, 3240, 3420, 3994, 4104, 4320, 4560, 5130, 5472, 5991, 6156, 6480, 6840, 7695, 7988, 8208, 9120, 9985, 10260, 11982, 12312, 12960, 13680, 15390, 15976, 16416, 17973, 19970, 20520, 23964, 24624, 27360, 29955, 30780, 31952, 35946, 37943, 39940, 41040, 47928, 49248, 53919, 59910, 61560, 63904, 71892, 75886, 79880, 82080, 89865, 95856, 107838, 113829, 119820, 123120, 143784, 151772, 159760, 161757, 179730, 189715, 191712, 215676, 227658, 239640, 246240, 269595, 287568, 303544, 319520, 323514, 341487, 359460, 379430, 431352, 455316, 479280, 539190, 569145, 575136, 607088, 647028, 682974, 718920, 758860, 808785, 862704, 910632, 958560, 1024461, 1078380, 1138290, 1214176, 1294056, 1365948, 1437840, 1517720, 1617570, 1707435, 1725408, 1821264, 2048922, 2156760, 2276580, 2588112, 2731896, 2875680, 3035440, 3073383, 3235140, 3414870, 3642528, 4097844, 4313520, 4553160, 5122305, 5176224, 5463792, 6070880, 6146766, 6470280, 6829740, 8195688, 8627040, 9106320, 10244610, 10927584, 12293532, 12940560, 13659480, 15366915, 16391376, 18212640, 20489220, 24587064, 25881120, 27318960, 30733830, 32782752, 40978440, 49174128, 54637920, 61467660, 81956880, 98348256, 122935320, 163913760, 245870640, 491741280]

約数ペア:

[(1, 491741280), (2, 245870640), (3, 163913760), (4, 122935320), (5, 98348256), (6, 81956880), (8, 61467660), (9, 54637920), (10, 49174128), (12, 40978440), (15, 32782752), (16, 30733830), (18, 27318960), (19, 25881120), (20, 24587064), (24, 20489220), (27, 18212640), (30, 16391376), (32, 15366915), (36, 13659480), (38, 12940560), (40, 12293532), (45, 10927584), (48, 10244610), (54, 9106320), (57, 8627040), (60, 8195688), (72, 6829740), (76, 6470280), (80, 6146766), (81, 6070880), (90, 5463792), (95, 5176224), (96, 5122305), (108, 4553160), (114, 4313520), (120, 4097844), (135, 3642528), (144, 3414870), (152, 3235140), (160, 3073383), (162, 3035440), (171, 2875680), (180, 2731896), (190, 2588112), (216, 2276580), (228, 2156760), (240, 2048922), (270, 1821264), (285, 1725408), (288, 1707435), (304, 1617570), (324, 1517720), (342, 1437840), (360, 1365948), (380, 1294056), (405, 1214176), (432, 1138290), (456, 1078380), (480, 1024461), (513, 958560), (540, 910632), (570, 862704), (608, 808785), (648, 758860), (684, 718920), (720, 682974), (760, 647028), (810, 607088), (855, 575136), (864, 569145), (912, 539190), (1026, 479280), (1080, 455316), (1140, 431352), (1296, 379430), (1368, 359460), (1440, 341487), (1520, 323514), (1539, 319520), (1620, 303544), (1710, 287568), (1824, 269595), (1997, 246240), (2052, 239640), (2160, 227658), (2280, 215676), (2565, 191712), (2592, 189715), (2736, 179730), (3040, 161757), (3078, 159760), (3240, 151772), (3420, 143784), (3994, 123120), (4104, 119820), (4320, 113829), (4560, 107838), (5130, 95856), (5472, 89865), (5991, 82080), (6156, 79880), (6480, 75886), (6840, 71892), (7695, 63904), (7988, 61560), (8208, 59910), (9120, 53919), (9985, 49248), (10260, 47928), (11982, 41040), (12312, 39940), (12960, 37943), (13680, 35946), (15390, 31952), (15976, 30780), (16416, 29955), (17973, 27360), (19970, 24624), (20520, 23964)]