20853472

素因数分解:

$2^5\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:275

約数の個数: 48

約数和(自身を含む): 42517440

約数和(自身を除く): 21663968

約数列:

[1, 2, 4, 8, 16, 32, 73, 79, 113, 146, 158, 226, 292, 316, 452, 584, 632, 904, 1168, 1264, 1808, 2336, 2528, 3616, 5767, 8249, 8927, 11534, 16498, 17854, 23068, 32996, 35708, 46136, 65992, 71416, 92272, 131984, 142832, 184544, 263968, 285664, 651671, 1303342, 2606684, 5213368, 10426736, 20853472]

約数ペア:

[(1, 20853472), (2, 10426736), (4, 5213368), (8, 2606684), (16, 1303342), (32, 651671), (73, 285664), (79, 263968), (113, 184544), (146, 142832), (158, 131984), (226, 92272), (292, 71416), (316, 65992), (452, 46136), (584, 35708), (632, 32996), (904, 23068), (1168, 17854), (1264, 16498), (1808, 11534), (2336, 8927), (2528, 8249), (3616, 5767)]