495710020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{439}}^1$

素因数の和:605

約数の個数: 96

約数和(自身を含む): 1161135360

約数和(自身を除く): 665425340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 101, 130, 172, 202, 215, 260, 404, 430, 439, 505, 559, 860, 878, 1010, 1118, 1313, 1756, 2020, 2195, 2236, 2626, 2795, 4343, 4390, 5252, 5590, 5707, 6565, 8686, 8780, 11180, 11414, 13130, 17372, 18877, 21715, 22828, 26260, 28535, 37754, 43430, 44339, 56459, 57070, 75508, 86860, 88678, 94385, 112918, 114140, 177356, 188770, 221695, 225836, 245401, 282295, 377540, 443390, 490802, 564590, 576407, 886780, 981604, 1129180, 1152814, 1227005, 1906577, 2305628, 2454010, 2882035, 3813154, 4908020, 5764070, 7626308, 9532885, 11528140, 19065770, 24785501, 38131540, 49571002, 99142004, 123927505, 247855010, 495710020]

約数ペア:

[(1, 495710020), (2, 247855010), (4, 123927505), (5, 99142004), (10, 49571002), (13, 38131540), (20, 24785501), (26, 19065770), (43, 11528140), (52, 9532885), (65, 7626308), (86, 5764070), (101, 4908020), (130, 3813154), (172, 2882035), (202, 2454010), (215, 2305628), (260, 1906577), (404, 1227005), (430, 1152814), (439, 1129180), (505, 981604), (559, 886780), (860, 576407), (878, 564590), (1010, 490802), (1118, 443390), (1313, 377540), (1756, 282295), (2020, 245401), (2195, 225836), (2236, 221695), (2626, 188770), (2795, 177356), (4343, 114140), (4390, 112918), (5252, 94385), (5590, 88678), (5707, 86860), (6565, 75508), (8686, 57070), (8780, 56459), (11180, 44339), (11414, 43430), (13130, 37754), (17372, 28535), (18877, 26260), (21715, 22828)]