20371968

素因数分解:

$2^9\times 3^2\times {\mathrm{4421}}^1$

素因数の和:4445

約数の個数: 60

約数和(自身を含む): 58808178

約数和(自身を除く): 38436210

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 72, 96, 128, 144, 192, 256, 288, 384, 512, 576, 768, 1152, 1536, 2304, 4421, 4608, 8842, 13263, 17684, 26526, 35368, 39789, 53052, 70736, 79578, 106104, 141472, 159156, 212208, 282944, 318312, 424416, 565888, 636624, 848832, 1131776, 1273248, 1697664, 2263552, 2546496, 3395328, 5092992, 6790656, 10185984, 20371968]

約数ペア:

[(1, 20371968), (2, 10185984), (3, 6790656), (4, 5092992), (6, 3395328), (8, 2546496), (9, 2263552), (12, 1697664), (16, 1273248), (18, 1131776), (24, 848832), (32, 636624), (36, 565888), (48, 424416), (64, 318312), (72, 282944), (96, 212208), (128, 159156), (144, 141472), (192, 106104), (256, 79578), (288, 70736), (384, 53052), (512, 39789), (576, 35368), (768, 26526), (1152, 17684), (1536, 13263), (2304, 8842), (4421, 4608)]