17645140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{431}}^1$

素因数の和:552

約数の個数: 48

約数和(自身を含む): 39191040

約数和(自身を除く): 21545900

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 89, 92, 115, 178, 230, 356, 431, 445, 460, 862, 890, 1724, 1780, 2047, 2155, 4094, 4310, 8188, 8620, 9913, 10235, 19826, 20470, 38359, 39652, 40940, 49565, 76718, 99130, 153436, 191795, 198260, 383590, 767180, 882257, 1764514, 3529028, 4411285, 8822570, 17645140]

約数ペア:

[(1, 17645140), (2, 8822570), (4, 4411285), (5, 3529028), (10, 1764514), (20, 882257), (23, 767180), (46, 383590), (89, 198260), (92, 191795), (115, 153436), (178, 99130), (230, 76718), (356, 49565), (431, 40940), (445, 39652), (460, 38359), (862, 20470), (890, 19826), (1724, 10235), (1780, 9913), (2047, 8620), (2155, 8188), (4094, 4310)]