20798496

素因数分解:

$2^5\times 3^2\times {\mathrm{257}}^1\times {\mathrm{281}}^1$

素因数の和:554

約数の個数: 72

約数和(自身を含む): 59587164

約数和(自身を除く): 38788668

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 257, 281, 288, 514, 562, 771, 843, 1028, 1124, 1542, 1686, 2056, 2248, 2313, 2529, 3084, 3372, 4112, 4496, 4626, 5058, 6168, 6744, 8224, 8992, 9252, 10116, 12336, 13488, 18504, 20232, 24672, 26976, 37008, 40464, 72217, 74016, 80928, 144434, 216651, 288868, 433302, 577736, 649953, 866604, 1155472, 1299906, 1733208, 2310944, 2599812, 3466416, 5199624, 6932832, 10399248, 20798496]

約数ペア:

[(1, 20798496), (2, 10399248), (3, 6932832), (4, 5199624), (6, 3466416), (8, 2599812), (9, 2310944), (12, 1733208), (16, 1299906), (18, 1155472), (24, 866604), (32, 649953), (36, 577736), (48, 433302), (72, 288868), (96, 216651), (144, 144434), (257, 80928), (281, 74016), (288, 72217), (514, 40464), (562, 37008), (771, 26976), (843, 24672), (1028, 20232), (1124, 18504), (1542, 13488), (1686, 12336), (2056, 10116), (2248, 9252), (2313, 8992), (2529, 8224), (3084, 6744), (3372, 6168), (4112, 5058), (4496, 4626)]