259919870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1\times {\mathrm{397}}^1$

素因数の和:657

約数の個数: 64

約数和(自身を含む): 550195200

約数和(自身を除く): 290275330

約数列:

[1, 2, 5, 7, 10, 14, 35, 47, 70, 94, 199, 235, 329, 397, 398, 470, 658, 794, 995, 1393, 1645, 1985, 1990, 2779, 2786, 3290, 3970, 5558, 6965, 9353, 13895, 13930, 18659, 18706, 27790, 37318, 46765, 65471, 79003, 93295, 93530, 130613, 130942, 158006, 186590, 261226, 327355, 395015, 553021, 653065, 654710, 790030, 1106042, 1306130, 2765105, 3713141, 5530210, 7426282, 18565705, 25991987, 37131410, 51983974, 129959935, 259919870]

約数ペア:

[(1, 259919870), (2, 129959935), (5, 51983974), (7, 37131410), (10, 25991987), (14, 18565705), (35, 7426282), (47, 5530210), (70, 3713141), (94, 2765105), (199, 1306130), (235, 1106042), (329, 790030), (397, 654710), (398, 653065), (470, 553021), (658, 395015), (794, 327355), (995, 261226), (1393, 186590), (1645, 158006), (1985, 130942), (1990, 130613), (2779, 93530), (2786, 93295), (3290, 79003), (3970, 65471), (5558, 46765), (6965, 37318), (9353, 27790), (13895, 18706), (13930, 18659)]