27720880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{109}}^1$

素因数の和:167

約数の個数: 120

約数和(自身を含む): 75374640

約数和(自身を除く): 47653760

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 109, 110, 136, 170, 176, 187, 218, 220, 272, 289, 340, 374, 436, 440, 545, 578, 680, 748, 872, 880, 935, 1090, 1156, 1199, 1360, 1445, 1496, 1744, 1853, 1870, 2180, 2312, 2398, 2890, 2992, 3179, 3706, 3740, 4360, 4624, 4796, 5780, 5995, 6358, 7412, 7480, 8720, 9265, 9592, 11560, 11990, 12716, 14824, 14960, 15895, 18530, 19184, 20383, 23120, 23980, 25432, 29648, 31501, 31790, 37060, 40766, 47960, 50864, 63002, 63580, 74120, 81532, 95920, 101915, 126004, 127160, 148240, 157505, 163064, 203830, 252008, 254320, 315010, 326128, 346511, 407660, 504016, 630020, 693022, 815320, 1260040, 1386044, 1630640, 1732555, 2520080, 2772088, 3465110, 5544176, 6930220, 13860440, 27720880]

約数ペア:

[(1, 27720880), (2, 13860440), (4, 6930220), (5, 5544176), (8, 3465110), (10, 2772088), (11, 2520080), (16, 1732555), (17, 1630640), (20, 1386044), (22, 1260040), (34, 815320), (40, 693022), (44, 630020), (55, 504016), (68, 407660), (80, 346511), (85, 326128), (88, 315010), (109, 254320), (110, 252008), (136, 203830), (170, 163064), (176, 157505), (187, 148240), (218, 127160), (220, 126004), (272, 101915), (289, 95920), (340, 81532), (374, 74120), (436, 63580), (440, 63002), (545, 50864), (578, 47960), (680, 40766), (748, 37060), (872, 31790), (880, 31501), (935, 29648), (1090, 25432), (1156, 23980), (1199, 23120), (1360, 20383), (1445, 19184), (1496, 18530), (1744, 15895), (1853, 14960), (1870, 14824), (2180, 12716), (2312, 11990), (2398, 11560), (2890, 9592), (2992, 9265), (3179, 8720), (3706, 7480), (3740, 7412), (4360, 6358), (4624, 5995), (4796, 5780)]