28172516

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 55157760

約数和(自身を除く): 26985244

約数列:

[1, 2, 4, 19, 23, 38, 46, 71, 76, 92, 142, 227, 284, 437, 454, 874, 908, 1349, 1633, 1748, 2698, 3266, 4313, 5221, 5396, 6532, 8626, 10442, 16117, 17252, 20884, 31027, 32234, 62054, 64468, 99199, 124108, 198398, 306223, 370691, 396796, 612446, 741382, 1224892, 1482764, 7043129, 14086258, 28172516]

約数ペア:

[(1, 28172516), (2, 14086258), (4, 7043129), (19, 1482764), (23, 1224892), (38, 741382), (46, 612446), (71, 396796), (76, 370691), (92, 306223), (142, 198398), (227, 124108), (284, 99199), (437, 64468), (454, 62054), (874, 32234), (908, 31027), (1349, 20884), (1633, 17252), (1748, 16117), (2698, 10442), (3266, 8626), (4313, 6532), (5221, 5396)]