77677280

素因数分解:

$2^5\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1187}}^1$

素因数の和:1611

約数の個数: 48

約数和(自身を含む): 184116240

約数和(自身を除く): 106438960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 409, 818, 1187, 1636, 2045, 2374, 3272, 4090, 4748, 5935, 6544, 8180, 9496, 11870, 13088, 16360, 18992, 23740, 32720, 37984, 47480, 65440, 94960, 189920, 485483, 970966, 1941932, 2427415, 3883864, 4854830, 7767728, 9709660, 15535456, 19419320, 38838640, 77677280]

約数ペア:

[(1, 77677280), (2, 38838640), (4, 19419320), (5, 15535456), (8, 9709660), (10, 7767728), (16, 4854830), (20, 3883864), (32, 2427415), (40, 1941932), (80, 970966), (160, 485483), (409, 189920), (818, 94960), (1187, 65440), (1636, 47480), (2045, 37984), (2374, 32720), (3272, 23740), (4090, 18992), (4748, 16360), (5935, 13088), (6544, 11870), (8180, 9496)]