12889870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{2069}}^1$

素因数の和:2172

約数の個数: 32

約数和(自身を含む): 26827200

約数和(自身を除く): 13937330

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 89, 178, 445, 623, 890, 1246, 2069, 3115, 4138, 6230, 10345, 14483, 20690, 28966, 72415, 144830, 184141, 368282, 920705, 1288987, 1841410, 2577974, 6444935, 12889870]

約数ペア:

[(1, 12889870), (2, 6444935), (5, 2577974), (7, 1841410), (10, 1288987), (14, 920705), (35, 368282), (70, 184141), (89, 144830), (178, 72415), (445, 28966), (623, 20690), (890, 14483), (1246, 10345), (2069, 6230), (3115, 4138)]