28677860

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^2\times {\mathrm{853}}^1$

素因数の和:944

約数の個数: 36

約数和(自身を含む): 61800564

約数和(自身を除く): 33122704

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 853, 1681, 1706, 3362, 3412, 4265, 6724, 8405, 8530, 16810, 17060, 33620, 34973, 69946, 139892, 174865, 349730, 699460, 1433893, 2867786, 5735572, 7169465, 14338930, 28677860]

約数ペア:

[(1, 28677860), (2, 14338930), (4, 7169465), (5, 5735572), (10, 2867786), (20, 1433893), (41, 699460), (82, 349730), (164, 174865), (205, 139892), (410, 69946), (820, 34973), (853, 33620), (1681, 17060), (1706, 16810), (3362, 8530), (3412, 8405), (4265, 6724)]