81711520

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2731}}^1$

素因数の和:2774

約数の個数: 96

約数和(自身を含む): 223062336

約数和(自身を除く): 141350816

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 32, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 160, 170, 176, 187, 220, 272, 340, 352, 374, 440, 544, 680, 748, 880, 935, 1360, 1496, 1760, 1870, 2720, 2731, 2992, 3740, 5462, 5984, 7480, 10924, 13655, 14960, 21848, 27310, 29920, 30041, 43696, 46427, 54620, 60082, 87392, 92854, 109240, 120164, 150205, 185708, 218480, 232135, 240328, 300410, 371416, 436960, 464270, 480656, 510697, 600820, 742832, 928540, 961312, 1021394, 1201640, 1485664, 1857080, 2042788, 2403280, 2553485, 3714160, 4085576, 4806560, 5106970, 7428320, 8171152, 10213940, 16342304, 20427880, 40855760, 81711520]

約数ペア:

[(1, 81711520), (2, 40855760), (4, 20427880), (5, 16342304), (8, 10213940), (10, 8171152), (11, 7428320), (16, 5106970), (17, 4806560), (20, 4085576), (22, 3714160), (32, 2553485), (34, 2403280), (40, 2042788), (44, 1857080), (55, 1485664), (68, 1201640), (80, 1021394), (85, 961312), (88, 928540), (110, 742832), (136, 600820), (160, 510697), (170, 480656), (176, 464270), (187, 436960), (220, 371416), (272, 300410), (340, 240328), (352, 232135), (374, 218480), (440, 185708), (544, 150205), (680, 120164), (748, 109240), (880, 92854), (935, 87392), (1360, 60082), (1496, 54620), (1760, 46427), (1870, 43696), (2720, 30041), (2731, 29920), (2992, 27310), (3740, 21848), (5462, 14960), (5984, 13655), (7480, 10924)]