681809408

素因数分解:

$2^9\times 7^1\times {\mathrm{281}}^1\times {\mathrm{677}}^1$

素因数の和:983

約数の個数: 80

約数和(自身を含む): 1564748064

約数和(自身を除く): 882938656

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 281, 448, 512, 562, 677, 896, 1124, 1354, 1792, 1967, 2248, 2708, 3584, 3934, 4496, 4739, 5416, 7868, 8992, 9478, 10832, 15736, 17984, 18956, 21664, 31472, 35968, 37912, 43328, 62944, 71936, 75824, 86656, 125888, 143872, 151648, 173312, 190237, 251776, 303296, 346624, 380474, 503552, 606592, 760948, 1007104, 1213184, 1331659, 1521896, 2426368, 2663318, 3043792, 5326636, 6087584, 10653272, 12175168, 21306544, 24350336, 42613088, 48700672, 85226176, 97401344, 170452352, 340904704, 681809408]

約数ペア:

[(1, 681809408), (2, 340904704), (4, 170452352), (7, 97401344), (8, 85226176), (14, 48700672), (16, 42613088), (28, 24350336), (32, 21306544), (56, 12175168), (64, 10653272), (112, 6087584), (128, 5326636), (224, 3043792), (256, 2663318), (281, 2426368), (448, 1521896), (512, 1331659), (562, 1213184), (677, 1007104), (896, 760948), (1124, 606592), (1354, 503552), (1792, 380474), (1967, 346624), (2248, 303296), (2708, 251776), (3584, 190237), (3934, 173312), (4496, 151648), (4739, 143872), (5416, 125888), (7868, 86656), (8992, 75824), (9478, 71936), (10832, 62944), (15736, 43328), (17984, 37912), (18956, 35968), (21664, 31472)]