257013684

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2$

素因数の和:131

約数の個数: 216

約数和(自身を含む): 780736320

約数和(自身を除く): 523722636

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 19, 23, 31, 34, 36, 38, 46, 51, 57, 62, 68, 69, 76, 92, 93, 102, 114, 124, 138, 153, 171, 186, 204, 207, 228, 276, 279, 306, 323, 342, 372, 391, 414, 437, 527, 558, 589, 612, 646, 684, 713, 782, 828, 874, 961, 969, 1054, 1116, 1173, 1178, 1292, 1311, 1426, 1564, 1581, 1748, 1767, 1922, 1938, 2108, 2139, 2346, 2356, 2622, 2852, 2883, 2907, 3162, 3519, 3534, 3844, 3876, 3933, 4278, 4692, 4743, 5244, 5301, 5766, 5814, 6324, 6417, 7038, 7068, 7429, 7866, 8556, 8649, 9486, 10013, 10602, 11532, 11628, 12121, 12834, 13547, 14076, 14858, 15732, 16337, 17298, 18259, 18972, 20026, 21204, 22103, 22287, 24242, 25668, 27094, 29716, 30039, 32674, 34596, 36363, 36518, 40052, 40641, 44206, 44574, 48484, 49011, 54188, 54777, 60078, 65348, 66309, 66861, 72726, 73036, 81282, 88412, 89148, 90117, 98022, 109089, 109554, 120156, 121923, 132618, 133722, 145452, 147033, 162564, 164331, 180234, 196044, 198927, 218178, 219108, 230299, 243846, 265236, 267444, 294066, 310403, 328662, 360468, 375751, 397854, 419957, 436356, 460598, 487692, 588132, 620806, 657324, 690897, 751502, 795708, 839914, 921196, 931209, 1127253, 1241612, 1259871, 1381794, 1503004, 1679828, 1862418, 2072691, 2254506, 2519742, 2763588, 2793627, 3381759, 3724836, 3779613, 4145382, 4509012, 5039484, 5587254, 6763518, 7139269, 7559226, 8290764, 11174508, 13527036, 14278538, 15118452, 21417807, 28557076, 42835614, 64253421, 85671228, 128506842, 257013684]

約数ペア:

[(1, 257013684), (2, 128506842), (3, 85671228), (4, 64253421), (6, 42835614), (9, 28557076), (12, 21417807), (17, 15118452), (18, 14278538), (19, 13527036), (23, 11174508), (31, 8290764), (34, 7559226), (36, 7139269), (38, 6763518), (46, 5587254), (51, 5039484), (57, 4509012), (62, 4145382), (68, 3779613), (69, 3724836), (76, 3381759), (92, 2793627), (93, 2763588), (102, 2519742), (114, 2254506), (124, 2072691), (138, 1862418), (153, 1679828), (171, 1503004), (186, 1381794), (204, 1259871), (207, 1241612), (228, 1127253), (276, 931209), (279, 921196), (306, 839914), (323, 795708), (342, 751502), (372, 690897), (391, 657324), (414, 620806), (437, 588132), (527, 487692), (558, 460598), (589, 436356), (612, 419957), (646, 397854), (684, 375751), (713, 360468), (782, 328662), (828, 310403), (874, 294066), (961, 267444), (969, 265236), (1054, 243846), (1116, 230299), (1173, 219108), (1178, 218178), (1292, 198927), (1311, 196044), (1426, 180234), (1564, 164331), (1581, 162564), (1748, 147033), (1767, 145452), (1922, 133722), (1938, 132618), (2108, 121923), (2139, 120156), (2346, 109554), (2356, 109089), (2622, 98022), (2852, 90117), (2883, 89148), (2907, 88412), (3162, 81282), (3519, 73036), (3534, 72726), (3844, 66861), (3876, 66309), (3933, 65348), (4278, 60078), (4692, 54777), (4743, 54188), (5244, 49011), (5301, 48484), (5766, 44574), (5814, 44206), (6324, 40641), (6417, 40052), (7038, 36518), (7068, 36363), (7429, 34596), (7866, 32674), (8556, 30039), (8649, 29716), (9486, 27094), (10013, 25668), (10602, 24242), (11532, 22287), (11628, 22103), (12121, 21204), (12834, 20026), (13547, 18972), (14076, 18259), (14858, 17298), (15732, 16337)]