256412072

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{2633}}^1$

素因数の和:2730

約数の個数: 64

約数和(自身を含む): 576529920

約数和(自身を除く): 320117848

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 47, 56, 74, 94, 148, 188, 259, 296, 329, 376, 518, 658, 1036, 1316, 1739, 2072, 2632, 2633, 3478, 5266, 6956, 10532, 12173, 13912, 18431, 21064, 24346, 36862, 48692, 73724, 97384, 97421, 123751, 147448, 194842, 247502, 389684, 495004, 681947, 779368, 866257, 990008, 1363894, 1732514, 2727788, 3465028, 4578787, 5455576, 6930056, 9157574, 18315148, 32051509, 36630296, 64103018, 128206036, 256412072]

約数ペア:

[(1, 256412072), (2, 128206036), (4, 64103018), (7, 36630296), (8, 32051509), (14, 18315148), (28, 9157574), (37, 6930056), (47, 5455576), (56, 4578787), (74, 3465028), (94, 2727788), (148, 1732514), (188, 1363894), (259, 990008), (296, 866257), (329, 779368), (376, 681947), (518, 495004), (658, 389684), (1036, 247502), (1316, 194842), (1739, 147448), (2072, 123751), (2632, 97421), (2633, 97384), (3478, 73724), (5266, 48692), (6956, 36862), (10532, 24346), (12173, 21064), (13912, 18431)]