385400240

素因数分解:

$2^4\times 5^1\times {\mathrm{421}}^1\times {\mathrm{11443}}^1$

素因数の和:11877

約数の個数: 40

約数和(自身を含む): 898262448

約数和(自身を除く): 512862208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 421, 842, 1684, 2105, 3368, 4210, 6736, 8420, 11443, 16840, 22886, 33680, 45772, 57215, 91544, 114430, 183088, 228860, 457720, 915440, 4817503, 9635006, 19270012, 24087515, 38540024, 48175030, 77080048, 96350060, 192700120, 385400240]

約数ペア:

[(1, 385400240), (2, 192700120), (4, 96350060), (5, 77080048), (8, 48175030), (10, 38540024), (16, 24087515), (20, 19270012), (40, 9635006), (80, 4817503), (421, 915440), (842, 457720), (1684, 228860), (2105, 183088), (3368, 114430), (4210, 91544), (6736, 57215), (8420, 45772), (11443, 33680), (16840, 22886)]