257263440

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{153133}}^1$

素因数の和:153156

約数の個数: 80

約数和(自身を含む): 911453568

約数和(自身を除く): 654190128

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 153133, 306266, 459399, 612532, 765665, 918798, 1071931, 1225064, 1531330, 1837596, 2143862, 2296995, 2450128, 3062660, 3215793, 3675192, 4287724, 4593990, 5359655, 6125320, 6431586, 7350384, 8575448, 9187980, 10719310, 12250640, 12863172, 16078965, 17150896, 18375960, 21438620, 25726344, 32157930, 36751920, 42877240, 51452688, 64315860, 85754480, 128631720, 257263440]

約数ペア:

[(1, 257263440), (2, 128631720), (3, 85754480), (4, 64315860), (5, 51452688), (6, 42877240), (7, 36751920), (8, 32157930), (10, 25726344), (12, 21438620), (14, 18375960), (15, 17150896), (16, 16078965), (20, 12863172), (21, 12250640), (24, 10719310), (28, 9187980), (30, 8575448), (35, 7350384), (40, 6431586), (42, 6125320), (48, 5359655), (56, 4593990), (60, 4287724), (70, 3675192), (80, 3215793), (84, 3062660), (105, 2450128), (112, 2296995), (120, 2143862), (140, 1837596), (168, 1531330), (210, 1225064), (240, 1071931), (280, 918798), (336, 765665), (420, 612532), (560, 459399), (840, 306266), (1680, 153133)]