31904420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{743}}^1$

素因数の和:884

約数の個数: 48

約数和(自身を含む): 71245440

約数和(自身を除く): 39341020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 113, 190, 226, 380, 452, 565, 743, 1130, 1486, 2147, 2260, 2972, 3715, 4294, 7430, 8588, 10735, 14117, 14860, 21470, 28234, 42940, 56468, 70585, 83959, 141170, 167918, 282340, 335836, 419795, 839590, 1595221, 1679180, 3190442, 6380884, 7976105, 15952210, 31904420]

約数ペア:

[(1, 31904420), (2, 15952210), (4, 7976105), (5, 6380884), (10, 3190442), (19, 1679180), (20, 1595221), (38, 839590), (76, 419795), (95, 335836), (113, 282340), (190, 167918), (226, 141170), (380, 83959), (452, 70585), (565, 56468), (743, 42940), (1130, 28234), (1486, 21470), (2147, 14860), (2260, 14117), (2972, 10735), (3715, 8588), (4294, 7430)]