28965640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{65831}}^1$

素因数の和:65853

約数の個数: 32

約数和(自身を含む): 71098560

約数和(自身を除く): 42132920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 65831, 131662, 263324, 329155, 526648, 658310, 724141, 1316620, 1448282, 2633240, 2896564, 3620705, 5793128, 7241410, 14482820, 28965640]

約数ペア:

[(1, 28965640), (2, 14482820), (4, 7241410), (5, 5793128), (8, 3620705), (10, 2896564), (11, 2633240), (20, 1448282), (22, 1316620), (40, 724141), (44, 658310), (55, 526648), (88, 329155), (110, 263324), (220, 131662), (440, 65831)]