997980890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{276449}}^1$

素因数の和:276494

約数の個数: 24

約数和(自身を含む): 1895894100

約数和(自身を除く): 897913210

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 361, 722, 1805, 3610, 276449, 552898, 1382245, 2764490, 5252531, 10505062, 26262655, 52525310, 99798089, 199596178, 498990445, 997980890]

約数ペア:

[(1, 997980890), (2, 498990445), (5, 199596178), (10, 99798089), (19, 52525310), (38, 26262655), (95, 10505062), (190, 5252531), (361, 2764490), (722, 1382245), (1805, 552898), (3610, 276449)]