256465740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{251437}}^1$

素因数の和:251466

約数の個数: 48

約数和(自身を含む): 760348512

約数和(自身を除く): 503882772

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 251437, 502874, 754311, 1005748, 1257185, 1508622, 2514370, 3017244, 3771555, 4274429, 5028740, 7543110, 8548858, 12823287, 15086220, 17097716, 21372145, 25646574, 42744290, 51293148, 64116435, 85488580, 128232870, 256465740]

約数ペア:

[(1, 256465740), (2, 128232870), (3, 85488580), (4, 64116435), (5, 51293148), (6, 42744290), (10, 25646574), (12, 21372145), (15, 17097716), (17, 15086220), (20, 12823287), (30, 8548858), (34, 7543110), (51, 5028740), (60, 4274429), (68, 3771555), (85, 3017244), (102, 2514370), (170, 1508622), (204, 1257185), (255, 1005748), (340, 754311), (510, 502874), (1020, 251437)]