20719690

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{653}}^1$

素因数の和:846

約数の個数: 32

約数和(自身を含む): 39553920

約数和(自身を除く): 18834230

約数列:

[1, 2, 5, 10, 19, 38, 95, 167, 190, 334, 653, 835, 1306, 1670, 3173, 3265, 6346, 6530, 12407, 15865, 24814, 31730, 62035, 109051, 124070, 218102, 545255, 1090510, 2071969, 4143938, 10359845, 20719690]

約数ペア:

[(1, 20719690), (2, 10359845), (5, 4143938), (10, 2071969), (19, 1090510), (38, 545255), (95, 218102), (167, 124070), (190, 109051), (334, 62035), (653, 31730), (835, 24814), (1306, 15865), (1670, 12407), (3173, 6530), (3265, 6346)]