663927095

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:324

約数の個数: 64

約数和(自身を含む): 946028160

約数和(自身を除く): 282101065

約数列:

[1, 5, 13, 17, 43, 65, 85, 89, 157, 215, 221, 445, 559, 731, 785, 1105, 1157, 1513, 2041, 2669, 2795, 3655, 3827, 5785, 6751, 7565, 9503, 10205, 13345, 13973, 19135, 19669, 33755, 34697, 47515, 49751, 65059, 69865, 87763, 98345, 114767, 173485, 181649, 237541, 248755, 325295, 438815, 573835, 600839, 845767, 908245, 1187705, 1491971, 3004195, 3088033, 4228835, 7459855, 7810907, 10214263, 15440165, 39054535, 51071315, 132785419, 663927095]

約数ペア:

[(1, 663927095), (5, 132785419), (13, 51071315), (17, 39054535), (43, 15440165), (65, 10214263), (85, 7810907), (89, 7459855), (157, 4228835), (215, 3088033), (221, 3004195), (445, 1491971), (559, 1187705), (731, 908245), (785, 845767), (1105, 600839), (1157, 573835), (1513, 438815), (2041, 325295), (2669, 248755), (2795, 237541), (3655, 181649), (3827, 173485), (5785, 114767), (6751, 98345), (7565, 87763), (9503, 69865), (10205, 65059), (13345, 49751), (13973, 47515), (19135, 34697), (19669, 33755)]