28167860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{1163}}^1$

素因数の和:1352

約数の個数: 48

約数和(自身を含む): 68052096

約数和(自身を除く): 39884236

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 173, 346, 692, 865, 1163, 1211, 1730, 2326, 2422, 3460, 4652, 4844, 5815, 6055, 8141, 11630, 12110, 16282, 23260, 24220, 32564, 40705, 81410, 162820, 201199, 402398, 804796, 1005995, 1408393, 2011990, 2816786, 4023980, 5633572, 7041965, 14083930, 28167860]

約数ペア:

[(1, 28167860), (2, 14083930), (4, 7041965), (5, 5633572), (7, 4023980), (10, 2816786), (14, 2011990), (20, 1408393), (28, 1005995), (35, 804796), (70, 402398), (140, 201199), (173, 162820), (346, 81410), (692, 40705), (865, 32564), (1163, 24220), (1211, 23260), (1730, 16282), (2326, 12110), (2422, 11630), (3460, 8141), (4652, 6055), (4844, 5815)]