56818520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{491}}^1$

素因数の和:776

約数の個数: 64

約数和(自身を含む): 140279040

約数和(自身を除く): 83460520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 263, 440, 491, 526, 982, 1052, 1315, 1964, 2104, 2455, 2630, 2893, 3928, 4910, 5260, 5401, 5786, 9820, 10520, 10802, 11572, 14465, 19640, 21604, 23144, 27005, 28930, 43208, 54010, 57860, 108020, 115720, 129133, 216040, 258266, 516532, 645665, 1033064, 1291330, 1420463, 2582660, 2840926, 5165320, 5681852, 7102315, 11363704, 14204630, 28409260, 56818520]

約数ペア:

[(1, 56818520), (2, 28409260), (4, 14204630), (5, 11363704), (8, 7102315), (10, 5681852), (11, 5165320), (20, 2840926), (22, 2582660), (40, 1420463), (44, 1291330), (55, 1033064), (88, 645665), (110, 516532), (220, 258266), (263, 216040), (440, 129133), (491, 115720), (526, 108020), (982, 57860), (1052, 54010), (1315, 43208), (1964, 28930), (2104, 27005), (2455, 23144), (2630, 21604), (2893, 19640), (3928, 14465), (4910, 11572), (5260, 10802), (5401, 10520), (5786, 9820)]