19258520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11743}}^1$

素因数の和:11795

約数の個数: 32

約数和(自身を含む): 44392320

約数和(自身を除く): 25133800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 11743, 23486, 46972, 58715, 93944, 117430, 234860, 469720, 481463, 962926, 1925852, 2407315, 3851704, 4814630, 9629260, 19258520]

約数ペア:

[(1, 19258520), (2, 9629260), (4, 4814630), (5, 3851704), (8, 2407315), (10, 1925852), (20, 962926), (40, 481463), (41, 469720), (82, 234860), (164, 117430), (205, 93944), (328, 58715), (410, 46972), (820, 23486), (1640, 11743)]