26831440

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1$

素因数の和:320

約数の個数: 80

約数和(自身を含む): 67026960

約数和(自身を除く): 40195520

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 109, 136, 170, 181, 218, 272, 340, 362, 436, 545, 680, 724, 872, 905, 1090, 1360, 1448, 1744, 1810, 1853, 2180, 2896, 3077, 3620, 3706, 4360, 6154, 7240, 7412, 8720, 9265, 12308, 14480, 14824, 15385, 18530, 19729, 24616, 29648, 30770, 37060, 39458, 49232, 61540, 74120, 78916, 98645, 123080, 148240, 157832, 197290, 246160, 315664, 335393, 394580, 670786, 789160, 1341572, 1578320, 1676965, 2683144, 3353930, 5366288, 6707860, 13415720, 26831440]

約数ペア:

[(1, 26831440), (2, 13415720), (4, 6707860), (5, 5366288), (8, 3353930), (10, 2683144), (16, 1676965), (17, 1578320), (20, 1341572), (34, 789160), (40, 670786), (68, 394580), (80, 335393), (85, 315664), (109, 246160), (136, 197290), (170, 157832), (181, 148240), (218, 123080), (272, 98645), (340, 78916), (362, 74120), (436, 61540), (545, 49232), (680, 39458), (724, 37060), (872, 30770), (905, 29648), (1090, 24616), (1360, 19729), (1448, 18530), (1744, 15385), (1810, 14824), (1853, 14480), (2180, 12308), (2896, 9265), (3077, 8720), (3620, 7412), (3706, 7240), (4360, 6154)]