20548690

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^2\times {\mathrm{79}}^1$

素因数の和:179

約数の個数: 48

約数和(自身を含む): 40521600

約数和(自身を除く): 19972910

約数列:

[1, 2, 5, 10, 19, 37, 38, 74, 79, 95, 158, 185, 190, 370, 395, 703, 790, 1369, 1406, 1501, 2738, 2923, 3002, 3515, 5846, 6845, 7030, 7505, 13690, 14615, 15010, 26011, 29230, 52022, 55537, 108151, 111074, 130055, 216302, 260110, 277685, 540755, 555370, 1081510, 2054869, 4109738, 10274345, 20548690]

約数ペア:

[(1, 20548690), (2, 10274345), (5, 4109738), (10, 2054869), (19, 1081510), (37, 555370), (38, 540755), (74, 277685), (79, 260110), (95, 216302), (158, 130055), (185, 111074), (190, 108151), (370, 55537), (395, 52022), (703, 29230), (790, 26011), (1369, 15010), (1406, 14615), (1501, 13690), (2738, 7505), (2923, 7030), (3002, 6845), (3515, 5846)]