28881820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{2477}}^1$

素因数の和:2550

約数の個数: 48

約数和(自身を含む): 67441248

約数和(自身を除く): 38559428

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 53, 55, 106, 110, 212, 220, 265, 530, 583, 1060, 1166, 2332, 2477, 2915, 4954, 5830, 9908, 11660, 12385, 24770, 27247, 49540, 54494, 108988, 131281, 136235, 262562, 272470, 525124, 544940, 656405, 1312810, 1444091, 2625620, 2888182, 5776364, 7220455, 14440910, 28881820]

約数ペア:

[(1, 28881820), (2, 14440910), (4, 7220455), (5, 5776364), (10, 2888182), (11, 2625620), (20, 1444091), (22, 1312810), (44, 656405), (53, 544940), (55, 525124), (106, 272470), (110, 262562), (212, 136235), (220, 131281), (265, 108988), (530, 54494), (583, 49540), (1060, 27247), (1166, 24770), (2332, 12385), (2477, 11660), (2915, 9908), (4954, 5830)]