19911480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{2273}}^1$

素因数の和:2360

約数の個数: 64

約数和(自身を含む): 60579360

約数和(自身を除く): 40667880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 73, 120, 146, 219, 292, 365, 438, 584, 730, 876, 1095, 1460, 1752, 2190, 2273, 2920, 4380, 4546, 6819, 8760, 9092, 11365, 13638, 18184, 22730, 27276, 34095, 45460, 54552, 68190, 90920, 136380, 165929, 272760, 331858, 497787, 663716, 829645, 995574, 1327432, 1659290, 1991148, 2488935, 3318580, 3982296, 4977870, 6637160, 9955740, 19911480]

約数ペア:

[(1, 19911480), (2, 9955740), (3, 6637160), (4, 4977870), (5, 3982296), (6, 3318580), (8, 2488935), (10, 1991148), (12, 1659290), (15, 1327432), (20, 995574), (24, 829645), (30, 663716), (40, 497787), (60, 331858), (73, 272760), (120, 165929), (146, 136380), (219, 90920), (292, 68190), (365, 54552), (438, 45460), (584, 34095), (730, 27276), (876, 22730), (1095, 18184), (1460, 13638), (1752, 11365), (2190, 9092), (2273, 8760), (2920, 6819), (4380, 4546)]