31380154

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:366

約数の個数: 32

約数和(自身を含む): 52254720

約数和(自身を除く): 20874566

約数列:

[1, 2, 13, 26, 71, 89, 142, 178, 191, 382, 923, 1157, 1846, 2314, 2483, 4966, 6319, 12638, 13561, 16999, 27122, 33998, 82147, 164294, 176293, 220987, 352586, 441974, 1206929, 2413858, 15690077, 31380154]

約数ペア:

[(1, 31380154), (2, 15690077), (13, 2413858), (26, 1206929), (71, 441974), (89, 352586), (142, 220987), (178, 176293), (191, 164294), (382, 82147), (923, 33998), (1157, 27122), (1846, 16999), (2314, 13561), (2483, 12638), (4966, 6319)]