12978520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{17077}}^1$

素因数の和:17107

約数の個数: 32

約数和(自身を含む): 30740400

約数和(自身を除く): 17761880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 17077, 34154, 68308, 85385, 136616, 170770, 324463, 341540, 648926, 683080, 1297852, 1622315, 2595704, 3244630, 6489260, 12978520]

約数ペア:

[(1, 12978520), (2, 6489260), (4, 3244630), (5, 2595704), (8, 1622315), (10, 1297852), (19, 683080), (20, 648926), (38, 341540), (40, 324463), (76, 170770), (95, 136616), (152, 85385), (190, 68308), (380, 34154), (760, 17077)]