638447488

素因数分解:

$2^7\times 7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{227}}^1$

素因数の和:364

約数の個数: 128

約数和(自身を含む): 1514430720

約数和(自身を除く): 875983232

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 56, 64, 73, 86, 112, 128, 146, 172, 224, 227, 292, 301, 344, 448, 454, 511, 584, 602, 688, 896, 908, 1022, 1168, 1204, 1376, 1589, 1816, 2044, 2336, 2408, 2752, 3139, 3178, 3632, 4088, 4672, 4816, 5504, 6278, 6356, 7264, 8176, 9344, 9632, 9761, 12556, 12712, 14528, 16352, 16571, 19264, 19522, 21973, 25112, 25424, 29056, 32704, 33142, 38528, 39044, 43946, 50224, 50848, 65408, 66284, 68327, 78088, 87892, 100448, 101696, 115997, 132568, 136654, 156176, 175784, 200896, 203392, 231994, 265136, 273308, 312352, 351568, 401792, 463988, 530272, 546616, 624704, 703136, 712553, 927976, 1060544, 1093232, 1249408, 1406272, 1425106, 1855952, 2121088, 2186464, 2812544, 2850212, 3711904, 4372928, 4987871, 5700424, 7423808, 8745856, 9975742, 11400848, 14847616, 19951484, 22801696, 39902968, 45603392, 79805936, 91206784, 159611872, 319223744, 638447488]

約数ペア:

[(1, 638447488), (2, 319223744), (4, 159611872), (7, 91206784), (8, 79805936), (14, 45603392), (16, 39902968), (28, 22801696), (32, 19951484), (43, 14847616), (56, 11400848), (64, 9975742), (73, 8745856), (86, 7423808), (112, 5700424), (128, 4987871), (146, 4372928), (172, 3711904), (224, 2850212), (227, 2812544), (292, 2186464), (301, 2121088), (344, 1855952), (448, 1425106), (454, 1406272), (511, 1249408), (584, 1093232), (602, 1060544), (688, 927976), (896, 712553), (908, 703136), (1022, 624704), (1168, 546616), (1204, 530272), (1376, 463988), (1589, 401792), (1816, 351568), (2044, 312352), (2336, 273308), (2408, 265136), (2752, 231994), (3139, 203392), (3178, 200896), (3632, 175784), (4088, 156176), (4672, 136654), (4816, 132568), (5504, 115997), (6278, 101696), (6356, 100448), (7264, 87892), (8176, 78088), (9344, 68327), (9632, 66284), (9761, 65408), (12556, 50848), (12712, 50224), (14528, 43946), (16352, 39044), (16571, 38528), (19264, 33142), (19522, 32704), (21973, 29056), (25112, 25424)]