1288398520

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{193}}^1\times {\mathrm{1063}}^1$

素因数の和:1424

約数の個数: 64

約数和(自身を含む): 2935235520

約数和(自身を除く): 1646837000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 193, 314, 386, 628, 772, 785, 965, 1063, 1256, 1544, 1570, 1930, 2126, 3140, 3860, 4252, 5315, 6280, 7720, 8504, 10630, 21260, 30301, 42520, 60602, 121204, 151505, 166891, 205159, 242408, 303010, 333782, 410318, 606020, 667564, 820636, 834455, 1025795, 1212040, 1335128, 1641272, 1668910, 2051590, 3337820, 4103180, 6675640, 8206360, 32209963, 64419926, 128839852, 161049815, 257679704, 322099630, 644199260, 1288398520]

約数ペア:

[(1, 1288398520), (2, 644199260), (4, 322099630), (5, 257679704), (8, 161049815), (10, 128839852), (20, 64419926), (40, 32209963), (157, 8206360), (193, 6675640), (314, 4103180), (386, 3337820), (628, 2051590), (772, 1668910), (785, 1641272), (965, 1335128), (1063, 1212040), (1256, 1025795), (1544, 834455), (1570, 820636), (1930, 667564), (2126, 606020), (3140, 410318), (3860, 333782), (4252, 303010), (5315, 242408), (6280, 205159), (7720, 166891), (8504, 151505), (10630, 121204), (21260, 60602), (30301, 42520)]