81789195

素因数分解:

$3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{131}}^1\times {\mathrm{389}}^1$

素因数の和:635

約数の個数: 32

約数和(自身を含む): 133436160

約数和(自身を除く): 51646965

約数列:

[1, 3, 5, 15, 107, 131, 321, 389, 393, 535, 655, 1167, 1605, 1945, 1965, 5835, 14017, 41623, 42051, 50959, 70085, 124869, 152877, 208115, 210255, 254795, 624345, 764385, 5452613, 16357839, 27263065, 81789195]

約数ペア:

[(1, 81789195), (3, 27263065), (5, 16357839), (15, 5452613), (107, 764385), (131, 624345), (321, 254795), (389, 210255), (393, 208115), (535, 152877), (655, 124869), (1167, 70085), (1605, 50959), (1945, 42051), (1965, 41623), (5835, 14017)]