28384840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2081}}^1$

素因数の和:2134

約数の個数: 64

約数和(自身を含む): 71953920

約数和(自身を除く): 43569080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1705, 2081, 2728, 3410, 4162, 6820, 8324, 10405, 13640, 16648, 20810, 22891, 41620, 45782, 64511, 83240, 91564, 114455, 129022, 183128, 228910, 258044, 322555, 457820, 516088, 645110, 709621, 915640, 1290220, 1419242, 2580440, 2838484, 3548105, 5676968, 7096210, 14192420, 28384840]

約数ペア:

[(1, 28384840), (2, 14192420), (4, 7096210), (5, 5676968), (8, 3548105), (10, 2838484), (11, 2580440), (20, 1419242), (22, 1290220), (31, 915640), (40, 709621), (44, 645110), (55, 516088), (62, 457820), (88, 322555), (110, 258044), (124, 228910), (155, 183128), (220, 129022), (248, 114455), (310, 91564), (341, 83240), (440, 64511), (620, 45782), (682, 41620), (1240, 22891), (1364, 20810), (1705, 16648), (2081, 13640), (2728, 10405), (3410, 8324), (4162, 6820)]