55505780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{1607}}^1$

素因数の和:1784

約数の個数: 48

約数和(自身を含む): 128048256

約数和(自身を除く): 72542476

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 157, 220, 314, 628, 785, 1570, 1607, 1727, 3140, 3214, 3454, 6428, 6908, 8035, 8635, 16070, 17270, 17677, 32140, 34540, 35354, 70708, 88385, 176770, 252299, 353540, 504598, 1009196, 1261495, 2522990, 2775289, 5045980, 5550578, 11101156, 13876445, 27752890, 55505780]

約数ペア:

[(1, 55505780), (2, 27752890), (4, 13876445), (5, 11101156), (10, 5550578), (11, 5045980), (20, 2775289), (22, 2522990), (44, 1261495), (55, 1009196), (110, 504598), (157, 353540), (220, 252299), (314, 176770), (628, 88385), (785, 70708), (1570, 35354), (1607, 34540), (1727, 32140), (3140, 17677), (3214, 17270), (3454, 16070), (6428, 8635), (6908, 8035)]