129835720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{509}}^1\times {\mathrm{911}}^1$

素因数の和:1438

約数の個数: 64

約数和(自身を含む): 334886400

約数和(自身を除く): 205050680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 509, 911, 1018, 1822, 2036, 2545, 3563, 3644, 4072, 4555, 5090, 6377, 7126, 7288, 9110, 10180, 12754, 14252, 17815, 18220, 20360, 25508, 28504, 31885, 35630, 36440, 51016, 63770, 71260, 127540, 142520, 255080, 463699, 927398, 1854796, 2318495, 3245893, 3709592, 4636990, 6491786, 9273980, 12983572, 16229465, 18547960, 25967144, 32458930, 64917860, 129835720]

約数ペア:

[(1, 129835720), (2, 64917860), (4, 32458930), (5, 25967144), (7, 18547960), (8, 16229465), (10, 12983572), (14, 9273980), (20, 6491786), (28, 4636990), (35, 3709592), (40, 3245893), (56, 2318495), (70, 1854796), (140, 927398), (280, 463699), (509, 255080), (911, 142520), (1018, 127540), (1822, 71260), (2036, 63770), (2545, 51016), (3563, 36440), (3644, 35630), (4072, 31885), (4555, 28504), (5090, 25508), (6377, 20360), (7126, 18220), (7288, 17815), (9110, 14252), (10180, 12754)]