20325516

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{373}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 50265600

約数和(自身を除く): 29940084

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 228, 239, 373, 478, 717, 746, 956, 1119, 1434, 1492, 2238, 2868, 4476, 4541, 7087, 9082, 13623, 14174, 18164, 21261, 27246, 28348, 42522, 54492, 85044, 89147, 178294, 267441, 356588, 534882, 1069764, 1693793, 3387586, 5081379, 6775172, 10162758, 20325516]

約数ペア:

[(1, 20325516), (2, 10162758), (3, 6775172), (4, 5081379), (6, 3387586), (12, 1693793), (19, 1069764), (38, 534882), (57, 356588), (76, 267441), (114, 178294), (228, 89147), (239, 85044), (373, 54492), (478, 42522), (717, 28348), (746, 27246), (956, 21261), (1119, 18164), (1434, 14174), (1492, 13623), (2238, 9082), (2868, 7087), (4476, 4541)]