388581640

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{34327}}^1$

素因数の和:34621

約数の個数: 32

約数和(自身を含む): 877423680

約数和(自身を除く): 488842040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1132, 1415, 2264, 2830, 5660, 11320, 34327, 68654, 137308, 171635, 274616, 343270, 686540, 1373080, 9714541, 19429082, 38858164, 48572705, 77716328, 97145410, 194290820, 388581640]

約数ペア:

[(1, 388581640), (2, 194290820), (4, 97145410), (5, 77716328), (8, 48572705), (10, 38858164), (20, 19429082), (40, 9714541), (283, 1373080), (566, 686540), (1132, 343270), (1415, 274616), (2264, 171635), (2830, 137308), (5660, 68654), (11320, 34327)]