81123240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:224

約数の個数: 192

約数和(自身を含む): 276554880

約数和(自身を除く): 195431640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 37, 40, 44, 55, 60, 66, 74, 88, 110, 111, 120, 121, 132, 148, 151, 165, 185, 220, 222, 242, 264, 296, 302, 330, 363, 370, 407, 440, 444, 453, 484, 555, 604, 605, 660, 726, 740, 755, 814, 888, 906, 968, 1110, 1208, 1210, 1221, 1320, 1452, 1480, 1510, 1628, 1661, 1812, 1815, 2035, 2220, 2265, 2420, 2442, 2904, 3020, 3256, 3322, 3624, 3630, 4070, 4440, 4477, 4530, 4840, 4884, 4983, 5587, 6040, 6105, 6644, 7260, 8140, 8305, 8954, 9060, 9768, 9966, 11174, 12210, 13288, 13431, 14520, 16280, 16610, 16761, 17908, 18120, 18271, 19932, 22348, 22385, 24420, 24915, 26862, 27935, 33220, 33522, 35816, 36542, 39864, 44696, 44770, 48840, 49830, 53724, 54813, 55870, 61457, 66440, 67044, 67155, 73084, 83805, 89540, 91355, 99660, 107448, 109626, 111740, 122914, 134088, 134310, 146168, 167610, 179080, 182710, 184371, 199320, 219252, 223480, 245828, 268620, 274065, 307285, 335220, 365420, 368742, 438504, 491656, 537240, 548130, 614570, 670440, 676027, 730840, 737484, 921855, 1096260, 1229140, 1352054, 1474968, 1843710, 2028081, 2192520, 2458280, 2704108, 3380135, 3687420, 4056162, 5408216, 6760270, 7374840, 8112324, 10140405, 13520540, 16224648, 20280810, 27041080, 40561620, 81123240]

約数ペア:

[(1, 81123240), (2, 40561620), (3, 27041080), (4, 20280810), (5, 16224648), (6, 13520540), (8, 10140405), (10, 8112324), (11, 7374840), (12, 6760270), (15, 5408216), (20, 4056162), (22, 3687420), (24, 3380135), (30, 2704108), (33, 2458280), (37, 2192520), (40, 2028081), (44, 1843710), (55, 1474968), (60, 1352054), (66, 1229140), (74, 1096260), (88, 921855), (110, 737484), (111, 730840), (120, 676027), (121, 670440), (132, 614570), (148, 548130), (151, 537240), (165, 491656), (185, 438504), (220, 368742), (222, 365420), (242, 335220), (264, 307285), (296, 274065), (302, 268620), (330, 245828), (363, 223480), (370, 219252), (407, 199320), (440, 184371), (444, 182710), (453, 179080), (484, 167610), (555, 146168), (604, 134310), (605, 134088), (660, 122914), (726, 111740), (740, 109626), (755, 107448), (814, 99660), (888, 91355), (906, 89540), (968, 83805), (1110, 73084), (1208, 67155), (1210, 67044), (1221, 66440), (1320, 61457), (1452, 55870), (1480, 54813), (1510, 53724), (1628, 49830), (1661, 48840), (1812, 44770), (1815, 44696), (2035, 39864), (2220, 36542), (2265, 35816), (2420, 33522), (2442, 33220), (2904, 27935), (3020, 26862), (3256, 24915), (3322, 24420), (3624, 22385), (3630, 22348), (4070, 19932), (4440, 18271), (4477, 18120), (4530, 17908), (4840, 16761), (4884, 16610), (4983, 16280), (5587, 14520), (6040, 13431), (6105, 13288), (6644, 12210), (7260, 11174), (8140, 9966), (8305, 9768), (8954, 9060)]