280488488

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{1103}}^1$

素因数の和:1374

約数の個数: 64

約数和(自身を含む): 635904000

約数和(自身を除く): 355415512

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 239, 266, 478, 532, 956, 1064, 1103, 1673, 1912, 2206, 3346, 4412, 4541, 6692, 7721, 8824, 9082, 13384, 15442, 18164, 20957, 30884, 31787, 36328, 41914, 61768, 63574, 83828, 127148, 146699, 167656, 254296, 263617, 293398, 527234, 586796, 1054468, 1173592, 1845319, 2108936, 3690638, 5008723, 7381276, 10017446, 14762552, 20034892, 35061061, 40069784, 70122122, 140244244, 280488488]

約数ペア:

[(1, 280488488), (2, 140244244), (4, 70122122), (7, 40069784), (8, 35061061), (14, 20034892), (19, 14762552), (28, 10017446), (38, 7381276), (56, 5008723), (76, 3690638), (133, 2108936), (152, 1845319), (239, 1173592), (266, 1054468), (478, 586796), (532, 527234), (956, 293398), (1064, 263617), (1103, 254296), (1673, 167656), (1912, 146699), (2206, 127148), (3346, 83828), (4412, 63574), (4541, 61768), (6692, 41914), (7721, 36328), (8824, 31787), (9082, 30884), (13384, 20957), (15442, 18164)]