20198216

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{1601}}^1$

素因数の和:1709

約数の個数: 32

約数和(自身を含む): 40370400

約数和(自身を除く): 20172184

約数列:

[1, 2, 4, 8, 19, 38, 76, 83, 152, 166, 332, 664, 1577, 1601, 3154, 3202, 6308, 6404, 12616, 12808, 30419, 60838, 121676, 132883, 243352, 265766, 531532, 1063064, 2524777, 5049554, 10099108, 20198216]

約数ペア:

[(1, 20198216), (2, 10099108), (4, 5049554), (8, 2524777), (19, 1063064), (38, 531532), (76, 265766), (83, 243352), (152, 132883), (166, 121676), (332, 60838), (664, 30419), (1577, 12808), (1601, 12616), (3154, 6404), (3202, 6308)]