128380672

素因数分解:

$2^8\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2311}}^1$

素因数の和:2365

約数の個数: 72

約数和(自身を含む): 302446592

約数和(自身を除く): 174065920

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 217, 224, 248, 256, 434, 448, 496, 868, 896, 992, 1736, 1792, 1984, 2311, 3472, 3968, 4622, 6944, 7936, 9244, 13888, 16177, 18488, 27776, 32354, 36976, 55552, 64708, 71641, 73952, 129416, 143282, 147904, 258832, 286564, 295808, 501487, 517664, 573128, 591616, 1002974, 1035328, 1146256, 2005948, 2070656, 2292512, 4011896, 4141312, 4585024, 8023792, 9170048, 16047584, 18340096, 32095168, 64190336, 128380672]

約数ペア:

[(1, 128380672), (2, 64190336), (4, 32095168), (7, 18340096), (8, 16047584), (14, 9170048), (16, 8023792), (28, 4585024), (31, 4141312), (32, 4011896), (56, 2292512), (62, 2070656), (64, 2005948), (112, 1146256), (124, 1035328), (128, 1002974), (217, 591616), (224, 573128), (248, 517664), (256, 501487), (434, 295808), (448, 286564), (496, 258832), (868, 147904), (896, 143282), (992, 129416), (1736, 73952), (1792, 71641), (1984, 64708), (2311, 55552), (3472, 36976), (3968, 32354), (4622, 27776), (6944, 18488), (7936, 16177), (9244, 13888)]