28506320

素因数分解:

$2^4\times 5^1\times {\mathrm{349}}^1\times {\mathrm{1021}}^1$

素因数の和:1383

約数の個数: 40

約数和(自身を含む): 66532200

約数和(自身を除く): 38025880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 349, 698, 1021, 1396, 1745, 2042, 2792, 3490, 4084, 5105, 5584, 6980, 8168, 10210, 13960, 16336, 20420, 27920, 40840, 81680, 356329, 712658, 1425316, 1781645, 2850632, 3563290, 5701264, 7126580, 14253160, 28506320]

約数ペア:

[(1, 28506320), (2, 14253160), (4, 7126580), (5, 5701264), (8, 3563290), (10, 2850632), (16, 1781645), (20, 1425316), (40, 712658), (80, 356329), (349, 81680), (698, 40840), (1021, 27920), (1396, 20420), (1745, 16336), (2042, 13960), (2792, 10210), (3490, 8168), (4084, 6980), (5105, 5584)]