216845915

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{349}}^1$

素因数の和:468

約数の個数: 48

約数和(自身を含む): 312816000

約数和(自身を除く): 95970085

約数列:

[1, 5, 11, 13, 55, 65, 79, 121, 143, 349, 395, 605, 715, 869, 1027, 1573, 1745, 3839, 4345, 4537, 5135, 7865, 9559, 11297, 19195, 22685, 27571, 42229, 47795, 49907, 56485, 124267, 137855, 211145, 249535, 303281, 358423, 548977, 621335, 1516405, 1792115, 2744885, 3336091, 3942653, 16680455, 19713265, 43369183, 216845915]

約数ペア:

[(1, 216845915), (5, 43369183), (11, 19713265), (13, 16680455), (55, 3942653), (65, 3336091), (79, 2744885), (121, 1792115), (143, 1516405), (349, 621335), (395, 548977), (605, 358423), (715, 303281), (869, 249535), (1027, 211145), (1573, 137855), (1745, 124267), (3839, 56485), (4345, 49907), (4537, 47795), (5135, 42229), (7865, 27571), (9559, 22685), (11297, 19195)]