31431215

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{311}}^1$

素因数の和:403

約数の個数: 32

約数和(自身を含む): 42456960

約数和(自身を除く): 11025745

約数列:

[1, 5, 17, 29, 41, 85, 145, 205, 311, 493, 697, 1189, 1555, 2465, 3485, 5287, 5945, 9019, 12751, 20213, 26435, 45095, 63755, 101065, 153323, 216767, 369779, 766615, 1083835, 1848895, 6286243, 31431215]

約数ペア:

[(1, 31431215), (5, 6286243), (17, 1848895), (29, 1083835), (41, 766615), (85, 369779), (145, 216767), (205, 153323), (311, 101065), (493, 63755), (697, 45095), (1189, 26435), (1555, 20213), (2465, 12751), (3485, 9019), (5287, 5945)]