1981487357402

素因数分解:

$2^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{1399}}^1\times {\mathrm{140317}}^1$

素因数の和:141835

約数の個数: 48

約数和(自身を含む): 3493581436800

約数和(自身を除く): 1512094079398

約数列:

[1, 2, 7, 14, 49, 98, 103, 206, 721, 1399, 1442, 2798, 5047, 9793, 10094, 19586, 68551, 137102, 140317, 144097, 280634, 288194, 982219, 1008679, 1964438, 2017358, 6875533, 7060753, 13751066, 14121506, 14452651, 28905302, 101168557, 196303483, 202337114, 392606966, 708179899, 1374124381, 1416359798, 2748248762, 9618870667, 19237741334, 20219258749, 40438517498, 141534811243, 283069622486, 990743678701, 1981487357402]

約数ペア:

[(1, 1981487357402), (2, 990743678701), (7, 283069622486), (14, 141534811243), (49, 40438517498), (98, 20219258749), (103, 19237741334), (206, 9618870667), (721, 2748248762), (1399, 1416359798), (1442, 1374124381), (2798, 708179899), (5047, 392606966), (9793, 202337114), (10094, 196303483), (19586, 101168557), (68551, 28905302), (137102, 14452651), (140317, 14121506), (144097, 13751066), (280634, 7060753), (288194, 6875533), (982219, 2017358), (1008679, 1964438)]