290248

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:157

約数の個数: 32

約数和(自身を含む): 639360

約数和(自身を除く): 349112

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 73, 142, 146, 284, 292, 497, 511, 568, 584, 994, 1022, 1988, 2044, 3976, 4088, 5183, 10366, 20732, 36281, 41464, 72562, 145124, 290248]

約数ペア:

[(1, 290248), (2, 145124), (4, 72562), (7, 41464), (8, 36281), (14, 20732), (28, 10366), (56, 5183), (71, 4088), (73, 3976), (142, 2044), (146, 1988), (284, 1022), (292, 994), (497, 584), (511, 568)]