203425520

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{28571}}^1$

素因数の和:28673

約数の個数: 40

約数和(自身を含む): 478295280

約数和(自身を除く): 274869760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 28571, 57142, 114284, 142855, 228568, 285710, 457136, 571420, 1142840, 2285680, 2542819, 5085638, 10171276, 12714095, 20342552, 25428190, 40685104, 50856380, 101712760, 203425520]

約数ペア:

[(1, 203425520), (2, 101712760), (4, 50856380), (5, 40685104), (8, 25428190), (10, 20342552), (16, 12714095), (20, 10171276), (40, 5085638), (80, 2542819), (89, 2285680), (178, 1142840), (356, 571420), (445, 457136), (712, 285710), (890, 228568), (1424, 142855), (1780, 114284), (3560, 57142), (7120, 28571)]