68672620

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{353}}^1$

素因数の和:570

約数の個数: 48

約数和(自身を含む): 147728448

約数和(自身を除く): 79055828

約数列:

[1, 2, 4, 5, 10, 20, 71, 137, 142, 274, 284, 353, 355, 548, 685, 706, 710, 1370, 1412, 1420, 1765, 2740, 3530, 7060, 9727, 19454, 25063, 38908, 48361, 48635, 50126, 96722, 97270, 100252, 125315, 193444, 194540, 241805, 250630, 483610, 501260, 967220, 3433631, 6867262, 13734524, 17168155, 34336310, 68672620]

約数ペア:

[(1, 68672620), (2, 34336310), (4, 17168155), (5, 13734524), (10, 6867262), (20, 3433631), (71, 967220), (137, 501260), (142, 483610), (274, 250630), (284, 241805), (353, 194540), (355, 193444), (548, 125315), (685, 100252), (706, 97270), (710, 96722), (1370, 50126), (1412, 48635), (1420, 48361), (1765, 38908), (2740, 25063), (3530, 19454), (7060, 9727)]