1223728

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1$

素因数の和:445

約数の個数: 40

約数和(自身を含む): 2745360

約数和(自身を除く): 1521632

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 88, 136, 176, 187, 272, 374, 409, 748, 818, 1496, 1636, 2992, 3272, 4499, 6544, 6953, 8998, 13906, 17996, 27812, 35992, 55624, 71984, 76483, 111248, 152966, 305932, 611864, 1223728]

約数ペア:

[(1, 1223728), (2, 611864), (4, 305932), (8, 152966), (11, 111248), (16, 76483), (17, 71984), (22, 55624), (34, 35992), (44, 27812), (68, 17996), (88, 13906), (136, 8998), (176, 6953), (187, 6544), (272, 4499), (374, 3272), (409, 2992), (748, 1636), (818, 1496)]