12904040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{16979}}^1$

素因数の和:17009

約数の個数: 32

約数和(自身を含む): 30564000

約数和(自身を除く): 17659960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 16979, 33958, 67916, 84895, 135832, 169790, 322601, 339580, 645202, 679160, 1290404, 1613005, 2580808, 3226010, 6452020, 12904040]

約数ペア:

[(1, 12904040), (2, 6452020), (4, 3226010), (5, 2580808), (8, 1613005), (10, 1290404), (19, 679160), (20, 645202), (38, 339580), (40, 322601), (76, 169790), (95, 135832), (152, 84895), (190, 67916), (380, 33958), (760, 16979)]