8788120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19973}}^1$

素因数の和:19995

約数の個数: 32

約数和(自身を含む): 21571920

約数和(自身を除く): 12783800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 19973, 39946, 79892, 99865, 159784, 199730, 219703, 399460, 439406, 798920, 878812, 1098515, 1757624, 2197030, 4394060, 8788120]

約数ペア:

[(1, 8788120), (2, 4394060), (4, 2197030), (5, 1757624), (8, 1098515), (10, 878812), (11, 798920), (20, 439406), (22, 399460), (40, 219703), (44, 199730), (55, 159784), (88, 99865), (110, 79892), (220, 39946), (440, 19973)]