31398840

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{881}}^1$

素因数の和:915

約数の個数: 160

約数和(自身を含む): 115259760

約数和(自身を除く): 83860920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 54, 55, 60, 66, 72, 81, 88, 90, 99, 108, 110, 120, 132, 135, 162, 165, 180, 198, 216, 220, 264, 270, 297, 324, 330, 360, 396, 405, 440, 495, 540, 594, 648, 660, 792, 810, 881, 891, 990, 1080, 1188, 1320, 1485, 1620, 1762, 1782, 1980, 2376, 2643, 2970, 3240, 3524, 3564, 3960, 4405, 4455, 5286, 5940, 7048, 7128, 7929, 8810, 8910, 9691, 10572, 11880, 13215, 15858, 17620, 17820, 19382, 21144, 23787, 26430, 29073, 31716, 35240, 35640, 38764, 39645, 47574, 48455, 52860, 58146, 63432, 71361, 77528, 79290, 87219, 95148, 96910, 105720, 116292, 118935, 142722, 145365, 158580, 174438, 190296, 193820, 232584, 237870, 261657, 285444, 290730, 317160, 348876, 356805, 387640, 436095, 475740, 523314, 570888, 581460, 697752, 713610, 784971, 872190, 951480, 1046628, 1162920, 1308285, 1427220, 1569942, 1744380, 2093256, 2616570, 2854440, 3139884, 3488760, 3924855, 5233140, 6279768, 7849710, 10466280, 15699420, 31398840]

約数ペア:

[(1, 31398840), (2, 15699420), (3, 10466280), (4, 7849710), (5, 6279768), (6, 5233140), (8, 3924855), (9, 3488760), (10, 3139884), (11, 2854440), (12, 2616570), (15, 2093256), (18, 1744380), (20, 1569942), (22, 1427220), (24, 1308285), (27, 1162920), (30, 1046628), (33, 951480), (36, 872190), (40, 784971), (44, 713610), (45, 697752), (54, 581460), (55, 570888), (60, 523314), (66, 475740), (72, 436095), (81, 387640), (88, 356805), (90, 348876), (99, 317160), (108, 290730), (110, 285444), (120, 261657), (132, 237870), (135, 232584), (162, 193820), (165, 190296), (180, 174438), (198, 158580), (216, 145365), (220, 142722), (264, 118935), (270, 116292), (297, 105720), (324, 96910), (330, 95148), (360, 87219), (396, 79290), (405, 77528), (440, 71361), (495, 63432), (540, 58146), (594, 52860), (648, 48455), (660, 47574), (792, 39645), (810, 38764), (881, 35640), (891, 35240), (990, 31716), (1080, 29073), (1188, 26430), (1320, 23787), (1485, 21144), (1620, 19382), (1762, 17820), (1782, 17620), (1980, 15858), (2376, 13215), (2643, 11880), (2970, 10572), (3240, 9691), (3524, 8910), (3564, 8810), (3960, 7929), (4405, 7128), (4455, 7048), (5286, 5940)]