19799936

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{163}}^1$

素因数の和:263

約数の個数: 64

約数和(自身を含む): 43325520

約数和(自身を除く): 23525584

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 73, 104, 128, 146, 163, 208, 292, 326, 416, 584, 652, 832, 949, 1168, 1304, 1664, 1898, 2119, 2336, 2608, 3796, 4238, 4672, 5216, 7592, 8476, 9344, 10432, 11899, 15184, 16952, 20864, 23798, 30368, 33904, 47596, 60736, 67808, 95192, 121472, 135616, 154687, 190384, 271232, 309374, 380768, 618748, 761536, 1237496, 1523072, 2474992, 4949984, 9899968, 19799936]

約数ペア:

[(1, 19799936), (2, 9899968), (4, 4949984), (8, 2474992), (13, 1523072), (16, 1237496), (26, 761536), (32, 618748), (52, 380768), (64, 309374), (73, 271232), (104, 190384), (128, 154687), (146, 135616), (163, 121472), (208, 95192), (292, 67808), (326, 60736), (416, 47596), (584, 33904), (652, 30368), (832, 23798), (949, 20864), (1168, 16952), (1304, 15184), (1664, 11899), (1898, 10432), (2119, 9344), (2336, 8476), (2608, 7592), (3796, 5216), (4238, 4672)]