505051407

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^2\times {\mathrm{251}}^1$

素因数の和:365

約数の個数: 72

約数和(自身を含む): 903127680

約数和(自身を除く): 398076273

約数列:

[1, 3, 7, 9, 19, 21, 41, 57, 63, 123, 133, 171, 251, 287, 369, 399, 753, 779, 861, 1197, 1681, 1757, 2259, 2337, 2583, 4769, 5043, 5271, 5453, 7011, 10291, 11767, 14307, 15129, 15813, 16359, 30873, 31939, 33383, 35301, 42921, 49077, 72037, 92619, 95817, 100149, 105903, 195529, 216111, 223573, 287451, 300447, 421931, 586587, 648333, 670719, 1265793, 1368703, 1759761, 2012157, 2953517, 3797379, 4106109, 8016689, 8860551, 12318327, 24050067, 26581653, 56116823, 72150201, 168350469, 505051407]

約数ペア:

[(1, 505051407), (3, 168350469), (7, 72150201), (9, 56116823), (19, 26581653), (21, 24050067), (41, 12318327), (57, 8860551), (63, 8016689), (123, 4106109), (133, 3797379), (171, 2953517), (251, 2012157), (287, 1759761), (369, 1368703), (399, 1265793), (753, 670719), (779, 648333), (861, 586587), (1197, 421931), (1681, 300447), (1757, 287451), (2259, 223573), (2337, 216111), (2583, 195529), (4769, 105903), (5043, 100149), (5271, 95817), (5453, 92619), (7011, 72037), (10291, 49077), (11767, 42921), (14307, 35301), (15129, 33383), (15813, 31939), (16359, 30873)]