28555600

素因数分解:

$2^4\times 5^2\times {\mathrm{71389}}^1$

素因数の和:71407

約数の個数: 30

約数和(自身を含む): 68605790

約数和(自身を除く): 40050190

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 71389, 142778, 285556, 356945, 571112, 713890, 1142224, 1427780, 1784725, 2855560, 3569450, 5711120, 7138900, 14277800, 28555600]

約数ペア:

[(1, 28555600), (2, 14277800), (4, 7138900), (5, 5711120), (8, 3569450), (10, 2855560), (16, 1784725), (20, 1427780), (25, 1142224), (40, 713890), (50, 571112), (80, 356945), (100, 285556), (200, 142778), (400, 71389)]