26135680

素因数分解:

$2^7\times 5^1\times {\mathrm{97}}^1\times {\mathrm{421}}^1$

素因数の和:537

約数の個数: 64

約数和(自身を含む): 63274680

約数和(自身を除く): 37139000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 128, 160, 194, 320, 388, 421, 485, 640, 776, 842, 970, 1552, 1684, 1940, 2105, 3104, 3368, 3880, 4210, 6208, 6736, 7760, 8420, 12416, 13472, 15520, 16840, 26944, 31040, 33680, 40837, 53888, 62080, 67360, 81674, 134720, 163348, 204185, 269440, 326696, 408370, 653392, 816740, 1306784, 1633480, 2613568, 3266960, 5227136, 6533920, 13067840, 26135680]

約数ペア:

[(1, 26135680), (2, 13067840), (4, 6533920), (5, 5227136), (8, 3266960), (10, 2613568), (16, 1633480), (20, 1306784), (32, 816740), (40, 653392), (64, 408370), (80, 326696), (97, 269440), (128, 204185), (160, 163348), (194, 134720), (320, 81674), (388, 67360), (421, 62080), (485, 53888), (640, 40837), (776, 33680), (842, 31040), (970, 26944), (1552, 16840), (1684, 15520), (1940, 13472), (2105, 12416), (3104, 8420), (3368, 7760), (3880, 6736), (4210, 6208)]