77740640

素因数分解:

$2^5\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3709}}^1$

素因数の和:3855

約数の個数: 48

約数和(自身を含む): 185114160

約数和(自身を除く): 107373520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 131, 160, 262, 524, 655, 1048, 1310, 2096, 2620, 3709, 4192, 5240, 7418, 10480, 14836, 18545, 20960, 29672, 37090, 59344, 74180, 118688, 148360, 296720, 485879, 593440, 971758, 1943516, 2429395, 3887032, 4858790, 7774064, 9717580, 15548128, 19435160, 38870320, 77740640]

約数ペア:

[(1, 77740640), (2, 38870320), (4, 19435160), (5, 15548128), (8, 9717580), (10, 7774064), (16, 4858790), (20, 3887032), (32, 2429395), (40, 1943516), (80, 971758), (131, 593440), (160, 485879), (262, 296720), (524, 148360), (655, 118688), (1048, 74180), (1310, 59344), (2096, 37090), (2620, 29672), (3709, 20960), (4192, 18545), (5240, 14836), (7418, 10480)]