28790385

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{773}}^1$

素因数の和:985

約数の個数: 32

約数和(自身を含む): 49932288

約数和(自身を除く): 21141903

約数列:

[1, 3, 5, 13, 15, 39, 65, 191, 195, 573, 773, 955, 2319, 2483, 2865, 3865, 7449, 10049, 11595, 12415, 30147, 37245, 50245, 147643, 150735, 442929, 738215, 1919359, 2214645, 5758077, 9596795, 28790385]

約数ペア:

[(1, 28790385), (3, 9596795), (5, 5758077), (13, 2214645), (15, 1919359), (39, 738215), (65, 442929), (191, 150735), (195, 147643), (573, 50245), (773, 37245), (955, 30147), (2319, 12415), (2483, 11595), (2865, 10049), (3865, 7449)]