668836880

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{124783}}^1$

素因数の和:124863

約数の個数: 40

約数和(自身を含む): 1578268032

約数和(自身を除く): 909431152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 5360, 124783, 249566, 499132, 623915, 998264, 1247830, 1996528, 2495660, 4991320, 8360461, 9982640, 16720922, 33441844, 41802305, 66883688, 83604610, 133767376, 167209220, 334418440, 668836880]

約数ペア:

[(1, 668836880), (2, 334418440), (4, 167209220), (5, 133767376), (8, 83604610), (10, 66883688), (16, 41802305), (20, 33441844), (40, 16720922), (67, 9982640), (80, 8360461), (134, 4991320), (268, 2495660), (335, 1996528), (536, 1247830), (670, 998264), (1072, 623915), (1340, 499132), (2680, 249566), (5360, 124783)]