129216910

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{11149}}^1$

素因数の和:11236

約数の個数: 32

約数和(自身を含む): 248868000

約数和(自身を除く): 119651090

約数列:

[1, 2, 5, 10, 19, 38, 61, 95, 122, 190, 305, 610, 1159, 2318, 5795, 11149, 11590, 22298, 55745, 111490, 211831, 423662, 680089, 1059155, 1360178, 2118310, 3400445, 6800890, 12921691, 25843382, 64608455, 129216910]

約数ペア:

[(1, 129216910), (2, 64608455), (5, 25843382), (10, 12921691), (19, 6800890), (38, 3400445), (61, 2118310), (95, 1360178), (122, 1059155), (190, 680089), (305, 423662), (610, 211831), (1159, 111490), (2318, 55745), (5795, 22298), (11149, 11590)]