16642720

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:158

約数の個数: 96

約数和(自身を含む): 41912640

約数和(自身を除く): 25269920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 43, 59, 80, 82, 86, 118, 160, 164, 172, 205, 215, 236, 295, 328, 344, 410, 430, 472, 590, 656, 688, 820, 860, 944, 1180, 1312, 1376, 1640, 1720, 1763, 1888, 2360, 2419, 2537, 3280, 3440, 3526, 4720, 4838, 5074, 6560, 6880, 7052, 8815, 9440, 9676, 10148, 12095, 12685, 14104, 17630, 19352, 20296, 24190, 25370, 28208, 35260, 38704, 40592, 48380, 50740, 56416, 70520, 77408, 81184, 96760, 101480, 104017, 141040, 193520, 202960, 208034, 282080, 387040, 405920, 416068, 520085, 832136, 1040170, 1664272, 2080340, 3328544, 4160680, 8321360, 16642720]

約数ペア:

[(1, 16642720), (2, 8321360), (4, 4160680), (5, 3328544), (8, 2080340), (10, 1664272), (16, 1040170), (20, 832136), (32, 520085), (40, 416068), (41, 405920), (43, 387040), (59, 282080), (80, 208034), (82, 202960), (86, 193520), (118, 141040), (160, 104017), (164, 101480), (172, 96760), (205, 81184), (215, 77408), (236, 70520), (295, 56416), (328, 50740), (344, 48380), (410, 40592), (430, 38704), (472, 35260), (590, 28208), (656, 25370), (688, 24190), (820, 20296), (860, 19352), (944, 17630), (1180, 14104), (1312, 12685), (1376, 12095), (1640, 10148), (1720, 9676), (1763, 9440), (1888, 8815), (2360, 7052), (2419, 6880), (2537, 6560), (3280, 5074), (3440, 4838), (3526, 4720)]