1781567220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{486767}}^1$

素因数の和:486840

約数の個数: 48

約数和(自身を含む): 5070175488

約数和(自身を除く): 3288608268

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 122, 183, 244, 305, 366, 610, 732, 915, 1220, 1830, 3660, 486767, 973534, 1460301, 1947068, 2433835, 2920602, 4867670, 5841204, 7301505, 9735340, 14603010, 29206020, 29692787, 59385574, 89078361, 118771148, 148463935, 178156722, 296927870, 356313444, 445391805, 593855740, 890783610, 1781567220]

約数ペア:

[(1, 1781567220), (2, 890783610), (3, 593855740), (4, 445391805), (5, 356313444), (6, 296927870), (10, 178156722), (12, 148463935), (15, 118771148), (20, 89078361), (30, 59385574), (60, 29692787), (61, 29206020), (122, 14603010), (183, 9735340), (244, 7301505), (305, 5841204), (366, 4867670), (610, 2920602), (732, 2433835), (915, 1947068), (1220, 1460301), (1830, 973534), (3660, 486767)]