7853140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 17280144

約数和(自身を除く): 9427004

約数列:

[1, 2, 4, 5, 10, 20, 41, 61, 82, 122, 157, 164, 205, 244, 305, 314, 410, 610, 628, 785, 820, 1220, 1570, 2501, 3140, 5002, 6437, 9577, 10004, 12505, 12874, 19154, 25010, 25748, 32185, 38308, 47885, 50020, 64370, 95770, 128740, 191540, 392657, 785314, 1570628, 1963285, 3926570, 7853140]

約数ペア:

[(1, 7853140), (2, 3926570), (4, 1963285), (5, 1570628), (10, 785314), (20, 392657), (41, 191540), (61, 128740), (82, 95770), (122, 64370), (157, 50020), (164, 47885), (205, 38308), (244, 32185), (305, 25748), (314, 25010), (410, 19154), (610, 12874), (628, 12505), (785, 10004), (820, 9577), (1220, 6437), (1570, 5002), (2501, 3140)]