254591960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{331}}^1$

素因数の和:457

約数の個数: 128

約数和(自身を含む): 682698240

約数和(自身を除く): 428106280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 56, 67, 70, 82, 134, 140, 164, 205, 268, 280, 287, 328, 331, 335, 410, 469, 536, 574, 662, 670, 820, 938, 1148, 1324, 1340, 1435, 1640, 1655, 1876, 2296, 2317, 2345, 2648, 2680, 2747, 2870, 3310, 3752, 4634, 4690, 5494, 5740, 6620, 9268, 9380, 10988, 11480, 11585, 13240, 13571, 13735, 18536, 18760, 19229, 21976, 22177, 23170, 27142, 27470, 38458, 44354, 46340, 54284, 54940, 67855, 76916, 88708, 92680, 94997, 96145, 108568, 109880, 110885, 135710, 153832, 155239, 177416, 189994, 192290, 221770, 271420, 310478, 379988, 384580, 443540, 474985, 542840, 620956, 759976, 769160, 776195, 887080, 909257, 949970, 1241912, 1552390, 1818514, 1899940, 3104780, 3637028, 3799880, 4546285, 6209560, 6364799, 7274056, 9092570, 12729598, 18185140, 25459196, 31823995, 36370280, 50918392, 63647990, 127295980, 254591960]

約数ペア:

[(1, 254591960), (2, 127295980), (4, 63647990), (5, 50918392), (7, 36370280), (8, 31823995), (10, 25459196), (14, 18185140), (20, 12729598), (28, 9092570), (35, 7274056), (40, 6364799), (41, 6209560), (56, 4546285), (67, 3799880), (70, 3637028), (82, 3104780), (134, 1899940), (140, 1818514), (164, 1552390), (205, 1241912), (268, 949970), (280, 909257), (287, 887080), (328, 776195), (331, 769160), (335, 759976), (410, 620956), (469, 542840), (536, 474985), (574, 443540), (662, 384580), (670, 379988), (820, 310478), (938, 271420), (1148, 221770), (1324, 192290), (1340, 189994), (1435, 177416), (1640, 155239), (1655, 153832), (1876, 135710), (2296, 110885), (2317, 109880), (2345, 108568), (2648, 96145), (2680, 94997), (2747, 92680), (2870, 88708), (3310, 76916), (3752, 67855), (4634, 54940), (4690, 54284), (5494, 46340), (5740, 44354), (6620, 38458), (9268, 27470), (9380, 27142), (10988, 23170), (11480, 22177), (11585, 21976), (13240, 19229), (13571, 18760), (13735, 18536)]