66881290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{13457}}^1$

素因数の和:13542

約数の個数: 32

約数和(自身を含む): 139532544

約数和(自身を除く): 72651254

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 71, 142, 355, 497, 710, 994, 2485, 4970, 13457, 26914, 67285, 94199, 134570, 188398, 470995, 941990, 955447, 1910894, 4777235, 6688129, 9554470, 13376258, 33440645, 66881290]

約数ペア:

[(1, 66881290), (2, 33440645), (5, 13376258), (7, 9554470), (10, 6688129), (14, 4777235), (35, 1910894), (70, 955447), (71, 941990), (142, 470995), (355, 188398), (497, 134570), (710, 94199), (994, 67285), (2485, 26914), (4970, 13457)]