81180440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{10853}}^1$

素因数の和:10892

約数の個数: 64

約数和(自身を含む): 211001760

約数和(自身を除く): 129821320

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, 340, 374, 440, 680, 748, 935, 1496, 1870, 3740, 7480, 10853, 21706, 43412, 54265, 86824, 108530, 119383, 184501, 217060, 238766, 369002, 434120, 477532, 596915, 738004, 922505, 955064, 1193830, 1476008, 1845010, 2029511, 2387660, 3690020, 4059022, 4775320, 7380040, 8118044, 10147555, 16236088, 20295110, 40590220, 81180440]

約数ペア:

[(1, 81180440), (2, 40590220), (4, 20295110), (5, 16236088), (8, 10147555), (10, 8118044), (11, 7380040), (17, 4775320), (20, 4059022), (22, 3690020), (34, 2387660), (40, 2029511), (44, 1845010), (55, 1476008), (68, 1193830), (85, 955064), (88, 922505), (110, 738004), (136, 596915), (170, 477532), (187, 434120), (220, 369002), (340, 238766), (374, 217060), (440, 184501), (680, 119383), (748, 108530), (935, 86824), (1496, 54265), (1870, 43412), (3740, 21706), (7480, 10853)]