209570475

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1$

素因数の和:301

約数の個数: 96

約数和(自身を含む): 397474560

約数和(自身を除く): 187904085

約数列:

[1, 3, 5, 15, 17, 19, 25, 41, 51, 57, 75, 85, 95, 123, 205, 211, 255, 285, 323, 425, 475, 615, 633, 697, 779, 969, 1025, 1055, 1275, 1425, 1615, 2091, 2337, 3075, 3165, 3485, 3587, 3895, 4009, 4845, 5275, 8075, 8651, 10455, 10761, 11685, 12027, 13243, 15825, 17425, 17935, 19475, 20045, 24225, 25953, 39729, 43255, 52275, 53805, 58425, 60135, 66215, 68153, 89675, 100225, 129765, 147067, 164369, 198645, 204459, 216275, 269025, 300675, 331075, 340765, 441201, 493107, 648825, 735335, 821845, 993225, 1022295, 1703825, 2206005, 2465535, 2794273, 3676675, 4109225, 5111475, 8382819, 11030025, 12327675, 13971365, 41914095, 69856825, 209570475]

約数ペア:

[(1, 209570475), (3, 69856825), (5, 41914095), (15, 13971365), (17, 12327675), (19, 11030025), (25, 8382819), (41, 5111475), (51, 4109225), (57, 3676675), (75, 2794273), (85, 2465535), (95, 2206005), (123, 1703825), (205, 1022295), (211, 993225), (255, 821845), (285, 735335), (323, 648825), (425, 493107), (475, 441201), (615, 340765), (633, 331075), (697, 300675), (779, 269025), (969, 216275), (1025, 204459), (1055, 198645), (1275, 164369), (1425, 147067), (1615, 129765), (2091, 100225), (2337, 89675), (3075, 68153), (3165, 66215), (3485, 60135), (3587, 58425), (3895, 53805), (4009, 52275), (4845, 43255), (5275, 39729), (8075, 25953), (8651, 24225), (10455, 20045), (10761, 19475), (11685, 17935), (12027, 17425), (13243, 15825)]