128964980

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{2857}}^1$

素因数の和:2964

約数の個数: 48

約数和(自身を含む): 282804816

約数和(自身を除く): 153839836

約数列:

[1, 2, 4, 5, 10, 20, 37, 61, 74, 122, 148, 185, 244, 305, 370, 610, 740, 1220, 2257, 2857, 4514, 5714, 9028, 11285, 11428, 14285, 22570, 28570, 45140, 57140, 105709, 174277, 211418, 348554, 422836, 528545, 697108, 871385, 1057090, 1742770, 2114180, 3485540, 6448249, 12896498, 25792996, 32241245, 64482490, 128964980]

約数ペア:

[(1, 128964980), (2, 64482490), (4, 32241245), (5, 25792996), (10, 12896498), (20, 6448249), (37, 3485540), (61, 2114180), (74, 1742770), (122, 1057090), (148, 871385), (185, 697108), (244, 528545), (305, 422836), (370, 348554), (610, 211418), (740, 174277), (1220, 105709), (2257, 57140), (2857, 45140), (4514, 28570), (5714, 22570), (9028, 14285), (11285, 11428)]