998717840

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{98299}}^1$

素因数の和:98439

約数の個数: 40

約数和(自身を含む): 2340326400

約数和(自身を除く): 1341608560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2540, 5080, 10160, 98299, 196598, 393196, 491495, 786392, 982990, 1572784, 1965980, 3931960, 7863920, 12483973, 24967946, 49935892, 62419865, 99871784, 124839730, 199743568, 249679460, 499358920, 998717840]

約数ペア:

[(1, 998717840), (2, 499358920), (4, 249679460), (5, 199743568), (8, 124839730), (10, 99871784), (16, 62419865), (20, 49935892), (40, 24967946), (80, 12483973), (127, 7863920), (254, 3931960), (508, 1965980), (635, 1572784), (1016, 982990), (1270, 786392), (2032, 491495), (2540, 393196), (5080, 196598), (10160, 98299)]