128072028

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{41}}^2\times {\mathrm{907}}^1$

素因数の和:1003

約数の個数: 72

約数和(自身を含む): 350444416

約数和(自身を除く): 222372388

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 41, 42, 82, 84, 123, 164, 246, 287, 492, 574, 861, 907, 1148, 1681, 1722, 1814, 2721, 3362, 3444, 3628, 5043, 5442, 6349, 6724, 10086, 10884, 11767, 12698, 19047, 20172, 23534, 25396, 35301, 37187, 38094, 47068, 70602, 74374, 76188, 111561, 141204, 148748, 223122, 260309, 446244, 520618, 780927, 1041236, 1524667, 1561854, 3049334, 3123708, 4574001, 6098668, 9148002, 10672669, 18296004, 21345338, 32018007, 42690676, 64036014, 128072028]

約数ペア:

[(1, 128072028), (2, 64036014), (3, 42690676), (4, 32018007), (6, 21345338), (7, 18296004), (12, 10672669), (14, 9148002), (21, 6098668), (28, 4574001), (41, 3123708), (42, 3049334), (82, 1561854), (84, 1524667), (123, 1041236), (164, 780927), (246, 520618), (287, 446244), (492, 260309), (574, 223122), (861, 148748), (907, 141204), (1148, 111561), (1681, 76188), (1722, 74374), (1814, 70602), (2721, 47068), (3362, 38094), (3444, 37187), (3628, 35301), (5043, 25396), (5442, 23534), (6349, 20172), (6724, 19047), (10086, 12698), (10884, 11767)]