28066280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{281}}^1$

素因数の和:530

約数の個数: 64

約数和(自身を含む): 69439680

約数和(自身を除く): 41373400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 227, 281, 440, 454, 562, 908, 1124, 1135, 1405, 1816, 2248, 2270, 2497, 2810, 3091, 4540, 4994, 5620, 6182, 9080, 9988, 11240, 12364, 12485, 15455, 19976, 24728, 24970, 30910, 49940, 61820, 63787, 99880, 123640, 127574, 255148, 318935, 510296, 637870, 701657, 1275740, 1403314, 2551480, 2806628, 3508285, 5613256, 7016570, 14033140, 28066280]

約数ペア:

[(1, 28066280), (2, 14033140), (4, 7016570), (5, 5613256), (8, 3508285), (10, 2806628), (11, 2551480), (20, 1403314), (22, 1275740), (40, 701657), (44, 637870), (55, 510296), (88, 318935), (110, 255148), (220, 127574), (227, 123640), (281, 99880), (440, 63787), (454, 61820), (562, 49940), (908, 30910), (1124, 24970), (1135, 24728), (1405, 19976), (1816, 15455), (2248, 12485), (2270, 12364), (2497, 11240), (2810, 9988), (3091, 9080), (4540, 6182), (4994, 5620)]