28872680

素因数分解:

$2^3\times 5^1\times {\mathrm{463}}^1\times {\mathrm{1559}}^1$

素因数の和:2033

約数の個数: 32

約数和(自身を含む): 65145600

約数和(自身を除く): 36272920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 463, 926, 1559, 1852, 2315, 3118, 3704, 4630, 6236, 7795, 9260, 12472, 15590, 18520, 31180, 62360, 721817, 1443634, 2887268, 3609085, 5774536, 7218170, 14436340, 28872680]

約数ペア:

[(1, 28872680), (2, 14436340), (4, 7218170), (5, 5774536), (8, 3609085), (10, 2887268), (20, 1443634), (40, 721817), (463, 62360), (926, 31180), (1559, 18520), (1852, 15590), (2315, 12472), (3118, 9260), (3704, 7795), (4630, 6236)]