81231480

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{281}}^1$

素因数の和:382

約数の個数: 192

約数和(自身を含む): 292986720

約数和(自身を除く): 211755240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 73, 88, 90, 99, 110, 120, 132, 146, 165, 180, 198, 219, 220, 264, 281, 292, 330, 360, 365, 396, 438, 440, 495, 562, 584, 657, 660, 730, 792, 803, 843, 876, 990, 1095, 1124, 1314, 1320, 1405, 1460, 1606, 1686, 1752, 1980, 2190, 2248, 2409, 2529, 2628, 2810, 2920, 3091, 3212, 3285, 3372, 3960, 4015, 4215, 4380, 4818, 5058, 5256, 5620, 6182, 6424, 6570, 6744, 7227, 8030, 8430, 8760, 9273, 9636, 10116, 11240, 12045, 12364, 12645, 13140, 14454, 15455, 16060, 16860, 18546, 19272, 20232, 20513, 24090, 24728, 25290, 26280, 27819, 28908, 30910, 32120, 33720, 36135, 37092, 41026, 46365, 48180, 50580, 55638, 57816, 61539, 61820, 72270, 74184, 82052, 92730, 96360, 101160, 102565, 111276, 123078, 123640, 139095, 144540, 164104, 184617, 185460, 205130, 222552, 225643, 246156, 278190, 289080, 307695, 369234, 370920, 410260, 451286, 492312, 556380, 615390, 676929, 738468, 820520, 902572, 923085, 1112760, 1128215, 1230780, 1353858, 1476936, 1805144, 1846170, 2030787, 2256430, 2461560, 2707716, 3384645, 3692340, 4061574, 4512860, 5415432, 6769290, 7384680, 8123148, 9025720, 10153935, 13538580, 16246296, 20307870, 27077160, 40615740, 81231480]

約数ペア:

[(1, 81231480), (2, 40615740), (3, 27077160), (4, 20307870), (5, 16246296), (6, 13538580), (8, 10153935), (9, 9025720), (10, 8123148), (11, 7384680), (12, 6769290), (15, 5415432), (18, 4512860), (20, 4061574), (22, 3692340), (24, 3384645), (30, 2707716), (33, 2461560), (36, 2256430), (40, 2030787), (44, 1846170), (45, 1805144), (55, 1476936), (60, 1353858), (66, 1230780), (72, 1128215), (73, 1112760), (88, 923085), (90, 902572), (99, 820520), (110, 738468), (120, 676929), (132, 615390), (146, 556380), (165, 492312), (180, 451286), (198, 410260), (219, 370920), (220, 369234), (264, 307695), (281, 289080), (292, 278190), (330, 246156), (360, 225643), (365, 222552), (396, 205130), (438, 185460), (440, 184617), (495, 164104), (562, 144540), (584, 139095), (657, 123640), (660, 123078), (730, 111276), (792, 102565), (803, 101160), (843, 96360), (876, 92730), (990, 82052), (1095, 74184), (1124, 72270), (1314, 61820), (1320, 61539), (1405, 57816), (1460, 55638), (1606, 50580), (1686, 48180), (1752, 46365), (1980, 41026), (2190, 37092), (2248, 36135), (2409, 33720), (2529, 32120), (2628, 30910), (2810, 28908), (2920, 27819), (3091, 26280), (3212, 25290), (3285, 24728), (3372, 24090), (3960, 20513), (4015, 20232), (4215, 19272), (4380, 18546), (4818, 16860), (5058, 16060), (5256, 15455), (5620, 14454), (6182, 13140), (6424, 12645), (6570, 12364), (6744, 12045), (7227, 11240), (8030, 10116), (8430, 9636), (8760, 9273)]