81277680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1811}}^1$

素因数の和:1855

約数の個数: 160

約数和(自身を含む): 291195648

約数和(自身を除く): 209917968

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 17, 20, 22, 24, 30, 33, 34, 40, 44, 48, 51, 55, 60, 66, 68, 80, 85, 88, 102, 110, 120, 132, 136, 165, 170, 176, 187, 204, 220, 240, 255, 264, 272, 330, 340, 374, 408, 440, 510, 528, 561, 660, 680, 748, 816, 880, 935, 1020, 1122, 1320, 1360, 1496, 1811, 1870, 2040, 2244, 2640, 2805, 2992, 3622, 3740, 4080, 4488, 5433, 5610, 7244, 7480, 8976, 9055, 10866, 11220, 14488, 14960, 18110, 19921, 21732, 22440, 27165, 28976, 30787, 36220, 39842, 43464, 44880, 54330, 59763, 61574, 72440, 79684, 86928, 92361, 99605, 108660, 119526, 123148, 144880, 153935, 159368, 184722, 199210, 217320, 239052, 246296, 298815, 307870, 318736, 338657, 369444, 398420, 434640, 461805, 478104, 492592, 597630, 615740, 677314, 738888, 796840, 923610, 956208, 1015971, 1195260, 1231480, 1354628, 1477776, 1593680, 1693285, 1847220, 2031942, 2390520, 2462960, 2709256, 3386570, 3694440, 4063884, 4781040, 5079855, 5418512, 6773140, 7388880, 8127768, 10159710, 13546280, 16255536, 20319420, 27092560, 40638840, 81277680]

約数ペア:

[(1, 81277680), (2, 40638840), (3, 27092560), (4, 20319420), (5, 16255536), (6, 13546280), (8, 10159710), (10, 8127768), (11, 7388880), (12, 6773140), (15, 5418512), (16, 5079855), (17, 4781040), (20, 4063884), (22, 3694440), (24, 3386570), (30, 2709256), (33, 2462960), (34, 2390520), (40, 2031942), (44, 1847220), (48, 1693285), (51, 1593680), (55, 1477776), (60, 1354628), (66, 1231480), (68, 1195260), (80, 1015971), (85, 956208), (88, 923610), (102, 796840), (110, 738888), (120, 677314), (132, 615740), (136, 597630), (165, 492592), (170, 478104), (176, 461805), (187, 434640), (204, 398420), (220, 369444), (240, 338657), (255, 318736), (264, 307870), (272, 298815), (330, 246296), (340, 239052), (374, 217320), (408, 199210), (440, 184722), (510, 159368), (528, 153935), (561, 144880), (660, 123148), (680, 119526), (748, 108660), (816, 99605), (880, 92361), (935, 86928), (1020, 79684), (1122, 72440), (1320, 61574), (1360, 59763), (1496, 54330), (1811, 44880), (1870, 43464), (2040, 39842), (2244, 36220), (2640, 30787), (2805, 28976), (2992, 27165), (3622, 22440), (3740, 21732), (4080, 19921), (4488, 18110), (5433, 14960), (5610, 14488), (7244, 11220), (7480, 10866), (8976, 9055)]