20736816

素因数分解:

$2^4\times 3^1\times {\mathrm{41}}^2\times {\mathrm{257}}^1$

素因数の和:350

約数の個数: 60

約数和(自身を含む): 55122216

約数和(自身を除く): 34385400

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 41, 48, 82, 123, 164, 246, 257, 328, 492, 514, 656, 771, 984, 1028, 1542, 1681, 1968, 2056, 3084, 3362, 4112, 5043, 6168, 6724, 10086, 10537, 12336, 13448, 20172, 21074, 26896, 31611, 40344, 42148, 63222, 80688, 84296, 126444, 168592, 252888, 432017, 505776, 864034, 1296051, 1728068, 2592102, 3456136, 5184204, 6912272, 10368408, 20736816]

約数ペア:

[(1, 20736816), (2, 10368408), (3, 6912272), (4, 5184204), (6, 3456136), (8, 2592102), (12, 1728068), (16, 1296051), (24, 864034), (41, 505776), (48, 432017), (82, 252888), (123, 168592), (164, 126444), (246, 84296), (257, 80688), (328, 63222), (492, 42148), (514, 40344), (656, 31611), (771, 26896), (984, 21074), (1028, 20172), (1542, 13448), (1681, 12336), (1968, 10537), (2056, 10086), (3084, 6724), (3362, 6168), (4112, 5043)]