84067340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{787}}^1$

素因数の和:919

約数の個数: 72

約数和(自身を含む): 207511920

約数和(自身を除く): 123444580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 109, 140, 196, 218, 245, 436, 490, 545, 763, 787, 980, 1090, 1526, 1574, 2180, 3052, 3148, 3815, 3935, 5341, 5509, 7630, 7870, 10682, 11018, 15260, 15740, 21364, 22036, 26705, 27545, 38563, 53410, 55090, 77126, 85783, 106820, 110180, 154252, 171566, 192815, 343132, 385630, 428915, 600481, 771260, 857830, 1200962, 1715660, 2401924, 3002405, 4203367, 6004810, 8406734, 12009620, 16813468, 21016835, 42033670, 84067340]

約数ペア:

[(1, 84067340), (2, 42033670), (4, 21016835), (5, 16813468), (7, 12009620), (10, 8406734), (14, 6004810), (20, 4203367), (28, 3002405), (35, 2401924), (49, 1715660), (70, 1200962), (98, 857830), (109, 771260), (140, 600481), (196, 428915), (218, 385630), (245, 343132), (436, 192815), (490, 171566), (545, 154252), (763, 110180), (787, 106820), (980, 85783), (1090, 77126), (1526, 55090), (1574, 53410), (2180, 38563), (3052, 27545), (3148, 26705), (3815, 22036), (3935, 21364), (5341, 15740), (5509, 15260), (7630, 11018), (7870, 10682)]