128458905

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{2699}}^1$

素因数の和:2893

約数の個数: 32

約数和(自身を含む): 217728000

約数和(自身を除く): 89269095

約数列:

[1, 3, 5, 15, 19, 57, 95, 167, 285, 501, 835, 2505, 2699, 3173, 8097, 9519, 13495, 15865, 40485, 47595, 51281, 153843, 256405, 450733, 769215, 1352199, 2253665, 6760995, 8563927, 25691781, 42819635, 128458905]

約数ペア:

[(1, 128458905), (3, 42819635), (5, 25691781), (15, 8563927), (19, 6760995), (57, 2253665), (95, 1352199), (167, 769215), (285, 450733), (501, 256405), (835, 153843), (2505, 51281), (2699, 47595), (3173, 40485), (8097, 15865), (9519, 13495)]