28790415

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{223}}^1$

素因数の和:404

約数の個数: 48

約数和(自身を含む): 53114880

約数和(自身を除く): 24324465

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 151, 171, 223, 285, 453, 669, 755, 855, 1115, 1359, 2007, 2265, 2869, 3345, 4237, 6795, 8607, 10035, 12711, 14345, 21185, 25821, 33673, 38133, 43035, 63555, 101019, 129105, 168365, 190665, 303057, 505095, 639787, 1515285, 1919361, 3198935, 5758083, 9596805, 28790415]

約数ペア:

[(1, 28790415), (3, 9596805), (5, 5758083), (9, 3198935), (15, 1919361), (19, 1515285), (45, 639787), (57, 505095), (95, 303057), (151, 190665), (171, 168365), (223, 129105), (285, 101019), (453, 63555), (669, 43035), (755, 38133), (855, 33673), (1115, 25821), (1359, 21185), (2007, 14345), (2265, 12711), (2869, 10035), (3345, 8607), (4237, 6795)]