164149780

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{857}}^1$

素因数の和:1084

約数の個数: 48

約数和(自身を含む): 353008656

約数和(自身を除く): 188858876

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 157, 244, 305, 314, 610, 628, 785, 857, 1220, 1570, 1714, 3140, 3428, 4285, 8570, 9577, 17140, 19154, 38308, 47885, 52277, 95770, 104554, 134549, 191540, 209108, 261385, 269098, 522770, 538196, 672745, 1045540, 1345490, 2690980, 8207489, 16414978, 32829956, 41037445, 82074890, 164149780]

約数ペア:

[(1, 164149780), (2, 82074890), (4, 41037445), (5, 32829956), (10, 16414978), (20, 8207489), (61, 2690980), (122, 1345490), (157, 1045540), (244, 672745), (305, 538196), (314, 522770), (610, 269098), (628, 261385), (785, 209108), (857, 191540), (1220, 134549), (1570, 104554), (1714, 95770), (3140, 52277), (3428, 47885), (4285, 38308), (8570, 19154), (9577, 17140)]