16964440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{13681}}^1$

素因数の和:13723

約数の個数: 32

約数和(自身を含む): 39404160

約数和(自身を除く): 22439720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 13681, 27362, 54724, 68405, 109448, 136810, 273620, 424111, 547240, 848222, 1696444, 2120555, 3392888, 4241110, 8482220, 16964440]

約数ペア:

[(1, 16964440), (2, 8482220), (4, 4241110), (5, 3392888), (8, 2120555), (10, 1696444), (20, 848222), (31, 547240), (40, 424111), (62, 273620), (124, 136810), (155, 109448), (248, 68405), (310, 54724), (620, 27362), (1240, 13681)]