638004976

素因数分解:

$2^4\times 7^1\times {\mathrm{2351}}^1\times {\mathrm{2423}}^1$

素因数の和:4789

約数の個数: 40

約数和(自身を含む): 1413909504

約数和(自身を除く): 775904528

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 2351, 2423, 4702, 4846, 9404, 9692, 16457, 16961, 18808, 19384, 32914, 33922, 37616, 38768, 65828, 67844, 131656, 135688, 263312, 271376, 5696473, 11392946, 22785892, 39875311, 45571784, 79750622, 91143568, 159501244, 319002488, 638004976]

約数ペア:

[(1, 638004976), (2, 319002488), (4, 159501244), (7, 91143568), (8, 79750622), (14, 45571784), (16, 39875311), (28, 22785892), (56, 11392946), (112, 5696473), (2351, 271376), (2423, 263312), (4702, 135688), (4846, 131656), (9404, 67844), (9692, 65828), (16457, 38768), (16961, 37616), (18808, 33922), (19384, 32914)]