27642860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{421}}^1$

素因数の和:511

約数の個数: 72

約数和(自身を含む): 68698224

約数和(自身を除く): 41055364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 67, 70, 98, 134, 140, 196, 245, 268, 335, 421, 469, 490, 670, 842, 938, 980, 1340, 1684, 1876, 2105, 2345, 2947, 3283, 4210, 4690, 5894, 6566, 8420, 9380, 11788, 13132, 14735, 16415, 20629, 28207, 29470, 32830, 41258, 56414, 58940, 65660, 82516, 103145, 112828, 141035, 197449, 206290, 282070, 394898, 412580, 564140, 789796, 987245, 1382143, 1974490, 2764286, 3948980, 5528572, 6910715, 13821430, 27642860]

約数ペア:

[(1, 27642860), (2, 13821430), (4, 6910715), (5, 5528572), (7, 3948980), (10, 2764286), (14, 1974490), (20, 1382143), (28, 987245), (35, 789796), (49, 564140), (67, 412580), (70, 394898), (98, 282070), (134, 206290), (140, 197449), (196, 141035), (245, 112828), (268, 103145), (335, 82516), (421, 65660), (469, 58940), (490, 56414), (670, 41258), (842, 32830), (938, 29470), (980, 28207), (1340, 20629), (1684, 16415), (1876, 14735), (2105, 13132), (2345, 11788), (2947, 9380), (3283, 8420), (4210, 6566), (4690, 5894)]