28356680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{223}}^1$

素因数の和:279

約数の個数: 96

約数和(自身を含む): 74269440

約数和(自身を除く): 45912760

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 223, 289, 340, 374, 440, 446, 578, 680, 748, 892, 935, 1115, 1156, 1445, 1496, 1784, 1870, 2230, 2312, 2453, 2890, 3179, 3740, 3791, 4460, 4906, 5780, 6358, 7480, 7582, 8920, 9812, 11560, 12265, 12716, 15164, 15895, 18955, 19624, 24530, 25432, 30328, 31790, 37910, 41701, 49060, 63580, 64447, 75820, 83402, 98120, 127160, 128894, 151640, 166804, 208505, 257788, 322235, 333608, 417010, 515576, 644470, 708917, 834020, 1288940, 1417834, 1668040, 2577880, 2835668, 3544585, 5671336, 7089170, 14178340, 28356680]

約数ペア:

[(1, 28356680), (2, 14178340), (4, 7089170), (5, 5671336), (8, 3544585), (10, 2835668), (11, 2577880), (17, 1668040), (20, 1417834), (22, 1288940), (34, 834020), (40, 708917), (44, 644470), (55, 515576), (68, 417010), (85, 333608), (88, 322235), (110, 257788), (136, 208505), (170, 166804), (187, 151640), (220, 128894), (223, 127160), (289, 98120), (340, 83402), (374, 75820), (440, 64447), (446, 63580), (578, 49060), (680, 41701), (748, 37910), (892, 31790), (935, 30328), (1115, 25432), (1156, 24530), (1445, 19624), (1496, 18955), (1784, 15895), (1870, 15164), (2230, 12716), (2312, 12265), (2453, 11560), (2890, 9812), (3179, 8920), (3740, 7582), (3791, 7480), (4460, 6358), (4906, 5780)]