221569254520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{719}}^1\times {\mathrm{453181}}^1$

素因数の和:453928

約数の個数: 64

約数和(自身を含む): 528591484800

約数和(自身を除く): 307022230280

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 719, 1438, 2876, 3595, 5752, 7190, 12223, 14380, 24446, 28760, 48892, 61115, 97784, 122230, 244460, 453181, 488920, 906362, 1812724, 2265905, 3625448, 4531810, 7704077, 9063620, 15408154, 18127240, 30816308, 38520385, 61632616, 77040770, 154081540, 308163080, 325837139, 651674278, 1303348556, 1629185695, 2606697112, 3258371390, 5539231363, 6516742780, 11078462726, 13033485560, 22156925452, 27696156815, 44313850904, 55392313630, 110784627260, 221569254520]

約数ペア:

[(1, 221569254520), (2, 110784627260), (4, 55392313630), (5, 44313850904), (8, 27696156815), (10, 22156925452), (17, 13033485560), (20, 11078462726), (34, 6516742780), (40, 5539231363), (68, 3258371390), (85, 2606697112), (136, 1629185695), (170, 1303348556), (340, 651674278), (680, 325837139), (719, 308163080), (1438, 154081540), (2876, 77040770), (3595, 61632616), (5752, 38520385), (7190, 30816308), (12223, 18127240), (14380, 15408154), (24446, 9063620), (28760, 7704077), (48892, 4531810), (61115, 3625448), (97784, 2265905), (122230, 1812724), (244460, 906362), (453181, 488920)]