81349740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{151}}^1$

素因数の和:280

約数の個数: 144

約数和(自身を含む): 257939136

約数和(自身を除く): 176589396

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 41, 45, 60, 73, 82, 90, 123, 146, 151, 164, 180, 205, 219, 246, 292, 302, 365, 369, 410, 438, 453, 492, 604, 615, 657, 730, 738, 755, 820, 876, 906, 1095, 1230, 1314, 1359, 1460, 1476, 1510, 1812, 1845, 2190, 2265, 2460, 2628, 2718, 2993, 3020, 3285, 3690, 4380, 4530, 5436, 5986, 6191, 6570, 6795, 7380, 8979, 9060, 11023, 11972, 12382, 13140, 13590, 14965, 17958, 18573, 22046, 24764, 26937, 27180, 29930, 30955, 33069, 35916, 37146, 44092, 44895, 53874, 55115, 55719, 59860, 61910, 66138, 74292, 89790, 92865, 99207, 107748, 110230, 111438, 123820, 132276, 134685, 165345, 179580, 185730, 198414, 220460, 222876, 269370, 278595, 330690, 371460, 396828, 451943, 496035, 538740, 557190, 661380, 903886, 992070, 1114380, 1355829, 1807772, 1984140, 2259715, 2711658, 4067487, 4519430, 5423316, 6779145, 8134974, 9038860, 13558290, 16269948, 20337435, 27116580, 40674870, 81349740]

約数ペア:

[(1, 81349740), (2, 40674870), (3, 27116580), (4, 20337435), (5, 16269948), (6, 13558290), (9, 9038860), (10, 8134974), (12, 6779145), (15, 5423316), (18, 4519430), (20, 4067487), (30, 2711658), (36, 2259715), (41, 1984140), (45, 1807772), (60, 1355829), (73, 1114380), (82, 992070), (90, 903886), (123, 661380), (146, 557190), (151, 538740), (164, 496035), (180, 451943), (205, 396828), (219, 371460), (246, 330690), (292, 278595), (302, 269370), (365, 222876), (369, 220460), (410, 198414), (438, 185730), (453, 179580), (492, 165345), (604, 134685), (615, 132276), (657, 123820), (730, 111438), (738, 110230), (755, 107748), (820, 99207), (876, 92865), (906, 89790), (1095, 74292), (1230, 66138), (1314, 61910), (1359, 59860), (1460, 55719), (1476, 55115), (1510, 53874), (1812, 44895), (1845, 44092), (2190, 37146), (2265, 35916), (2460, 33069), (2628, 30955), (2718, 29930), (2993, 27180), (3020, 26937), (3285, 24764), (3690, 22046), (4380, 18573), (4530, 17958), (5436, 14965), (5986, 13590), (6191, 13140), (6570, 12382), (6795, 11972), (7380, 11023), (8979, 9060)]