640067664

素因数分解:

$2^4\times 3^1\times {\mathrm{31}}^1\times {\mathrm{443}}^1\times {\mathrm{971}}^1$

素因数の和:1456

約数の個数: 80

約数和(自身を含む): 1712461824

約数和(自身を除く): 1072394160

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 48, 62, 93, 124, 186, 248, 372, 443, 496, 744, 886, 971, 1329, 1488, 1772, 1942, 2658, 2913, 3544, 3884, 5316, 5826, 7088, 7768, 10632, 11652, 13733, 15536, 21264, 23304, 27466, 30101, 41199, 46608, 54932, 60202, 82398, 90303, 109864, 120404, 164796, 180606, 219728, 240808, 329592, 361212, 430153, 481616, 659184, 722424, 860306, 1290459, 1444848, 1720612, 2580918, 3441224, 5161836, 6882448, 10323672, 13334743, 20647344, 26669486, 40004229, 53338972, 80008458, 106677944, 160016916, 213355888, 320033832, 640067664]

約数ペア:

[(1, 640067664), (2, 320033832), (3, 213355888), (4, 160016916), (6, 106677944), (8, 80008458), (12, 53338972), (16, 40004229), (24, 26669486), (31, 20647344), (48, 13334743), (62, 10323672), (93, 6882448), (124, 5161836), (186, 3441224), (248, 2580918), (372, 1720612), (443, 1444848), (496, 1290459), (744, 860306), (886, 722424), (971, 659184), (1329, 481616), (1488, 430153), (1772, 361212), (1942, 329592), (2658, 240808), (2913, 219728), (3544, 180606), (3884, 164796), (5316, 120404), (5826, 109864), (7088, 90303), (7768, 82398), (10632, 60202), (11652, 54932), (13733, 46608), (15536, 41199), (21264, 30101), (23304, 27466)]