77404240

素因数分解:

$2^4\times 5^1\times {\mathrm{857}}^1\times {\mathrm{1129}}^1$

素因数の和:1999

約数の個数: 40

約数和(自身を含む): 180334440

約数和(自身を除く): 102930200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 857, 1129, 1714, 2258, 3428, 4285, 4516, 5645, 6856, 8570, 9032, 11290, 13712, 17140, 18064, 22580, 34280, 45160, 68560, 90320, 967553, 1935106, 3870212, 4837765, 7740424, 9675530, 15480848, 19351060, 38702120, 77404240]

約数ペア:

[(1, 77404240), (2, 38702120), (4, 19351060), (5, 15480848), (8, 9675530), (10, 7740424), (16, 4837765), (20, 3870212), (40, 1935106), (80, 967553), (857, 90320), (1129, 68560), (1714, 45160), (2258, 34280), (3428, 22580), (4285, 18064), (4516, 17140), (5645, 13712), (6856, 11290), (8570, 9032)]